Practice Test


Q1) Which of the following compounds is not coloured? Show Answer


Q2) According to the postulates of Werner's theory for coordination compounds Show Answer


Q3) The coordination number of Fe (II) in oxyhaemoglobin is Show Answer


Q4) Which of the following will give maximum number of isomers? Show Answer


Q5) Atomic number of Cr and Fe are respectively 24 and 26. Which of the following is paramagnetic with the spin of the electron? Show Answer


Q6) Which of the following compounds is square planner and does not have any unpaired electron? Show Answer


Q7) Pentaamminenitrocobalt (III) cation possesses the property of Show Answer


Q8) In any ferric salt, on adding potassium ferrocyanide a Prussian blue colour is obtained, which is mainly due to the formation of Show Answer


Q9) Which of the following is organometallic compound? Show Answer


Q10) A coordination complex compound of cobalt has molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of silver nitrate solutions, two moles of AgCl get precipitated. The ionic formula of this complex would be Show Answer


Q11) Which of the following is expected to be a paramagnetic complex? Show Answer


Q12) Which of the following compounds exhibits linkage isomerism? Show Answer


Q13) Which one of the following will not show geometrical isomerism? Show Answer


Q14) Which of the following hydrate is diamagnetic? Show Answer


Q15) Which one of the following octahedral complexes will not show geometrical iosmerism? (A and B are monodenatate ligands) Show Answer


Q16) In which there is outer orbital hybridisation? Show Answer


Q17) Which complex has square planar structure? Show Answer


Q18) In which of the following coordinate compounds the central metal atom obeys the EAN rule. Show Answer


Q19) Correct formula of the complex formed in the brown ring test for nitrates is Show Answer


Q20) The hypothetical complex chlorodiaquatriamminecobalt (III) chloride can be represented as Show Answer


Q21) According to Lewis, the ligands are Show Answer


Q22) Which of the following is not considered as an organometallic compound? Show Answer


Q23) The number of chloirde ion/s produced by complex tetraamminechloroplatinum (IV) chloride in an aqueous solution is Show Answer


Q24) In the compound lithium tetrahydridoaluminate, the ligand is Show Answer


Q25) Which is paramagnetic? Show Answer


Q26) Some salts although containing two different metallic elements give test for only one of them in solution. Such salts are Show Answer


Q27) The chemical formula for iron (III) hexacyanoferrate (II) is Show Answer


Q28) Which statement is incorrect? Show Answer


Q29) The most stable complex among the following is Show Answer


Q30) Which of the following does not have optical isomer? Show Answer


Q31) The formula of sodium nitroprusside is Show Answer


Q32) Which of the following is paramagnetic ? Show Answer


Q33) Mg is an important component of which bio-molecule occurring extensively in living world? Show Answer


Q34) Which of the following has square planar structure? Show Answer


Q35) Which of the following complexes will have four isomers? Show Answer


Q36) The blue colour obtained in the Lassaigne test is due to formation of the compound Show Answer


Q37) The formula of dichlorobis (urea) copper (II) is Show Answer


Q38) The group satisfying the secondary valencies of a cation in a complex are called Show Answer


Q39) Diethylene triamine is Show Answer


Q40) In which of the following compounds, the transition metal is in oxidation state of zero? Show Answer


Q41) Transition metals can form complexes in Show Answer


Q42) Oxidation state of nitrogen is not correctly given for the compound Show Answer


Q43) Which ion produces a small crystal field splitting ( a weak field ligand)? Show Answer


Q44) Colour of transition metal complexes can be explained by Show Answer


Q45) The tendency to show complex formation is maximum in ............ elements. Show Answer


Q46) A reagent used for identifying nickel ion is Show Answer


Q47) Geometrical isomerism is found in coordination compounds having coordination number Show Answer


Q48) Hexafluorocobaltate (III) ion is found to be high spin complex, the probable hybrid state of cobalt in it is Show Answer


Q49) Transition elements form complexes readily because of Show Answer


Q50) The two compound sulphatopentamminecobalt (III) bromide and sulphatopentaamminecobalt (III) chloride represent. Show Answer


Q51) Bidentate ligand is Show Answer


Q52) Iron has lowest oxidation state in Show Answer


Q53) Which one is not a ligand? Show Answer


Q54) A complex of platinum, ammonia and chlorine produces four ions per molecule in the solution. The structure consistent with the observation is Show Answer


Q55) Which of the following pairs of structures represents facial and meridional isomers (geometrical isomers) respectively? Show Answer


Q56) The formula of the complex potassium trichloroethylene platinate (II) is Show Answer


Q57) In Ziegler-Natta polymerization of ethylene, the active species is Show Answer


Q58) Which of the following will exhibit optical isomerism? Show Answer


Q59) The shape of cuprammonium ion is Show Answer


Q60) The catalyst used for the polymerization of olefins is Show Answer


Q61) Which of the following complex species does not involve inner orbital hybridisation? Show Answer


Q62) Which of the following ligands is a bidentate? Show Answer


Q63) The green pigment present in plants, chlorophyll contains the metal Show Answer


Q64) Carnallite is a Show Answer


Q65) Which of the following is odd one out? Show Answer


Q66) Which one of the following is an example of octahedral complex? Show Answer


Q67) Which of the following complex will show geometrical as well as optical isomerism? (en = ethylenediamine) Show Answer


Q68) Which of the following is paramagnetic ? Show Answer


Q69) A group of atoms can function as ligand only when Show Answer


Q70) The coordination number of copper in cuprammonium sulphate is Show Answer


Q71) A solution of potassium ferrocyanide would contain ...... Ions. Show Answer


Q72) Ligands in a complex salt are Show Answer


Q73) An example for a double salt is Show Answer


Q74) Both geometrical and optical isomerisms are shown by Show Answer


Q75) Pick out wrong combination. Show Answer


Q76) Which of the following shell form an outer octahedral complex? Show Answer


Q77) In octahedral CFT, the number of orbitals pushed down in energy are Show Answer


Q78) Which of the following cannot show linkage isomerism? Show Answer


Q79) Change in composition of coordination sphere yields which type of isomers? Show Answer


Q80) An octahedral complex is formed when hybrid orbitals of the following type are involved? Show Answer


Q81) Which is high spin complex? Show Answer


Q82) Which has square planar geometry? Show Answer


Q83) The type of isomerism present in nitropentaamminechromium (III) chloride is Show Answer


Q84) A similarity between optical and geometrical isomerism is that Show Answer


Q85) A square planar complex is formed by hybridization of which atomic orbitals? Show Answer


Q86) The coordination number of a central metal atom in complex is determined by Show Answer


Q87) Which one of the following complexes is an outer orbital complex? Show Answer


Q88) Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect? Show Answer


Q89) Which of the following compounds shows optical isomerism? Show Answer


Q90) Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour? Show Answer


Q91) Which of the following has a square planar geometry? Show Answer


Q92) The compound which does not show paramagnetism is Show Answer


Q93) Amongst the following ions which one has the highest paramagnetism? Show Answer


Q94) Which of the following is an organometallic compound? Show Answer


Q95) The complex ion which has no d electrons in the central metal atom is (At. No. Cr = 24, Mn = 25, Fe = 26, Co = 27) Show Answer


Q96) Which compound is formed when excess of KCN is added to aqueous solution of copper sulphate? Show Answer


Q97) Among the following, the compound that is both paramagnetic and coloured is Show Answer


Q98) Among the following metal carbonyls, the C - O bond order is lowest in Show Answer


Q99) The compound(s) that exhibit(s) geometrical isomerism is (are) Show Answer


Q100) Which of the following has an optical isomer? Show Answer


Q101) Which of the following pairs represents linkage isomers? Show Answer


Q102) Exchange of coordination group by a water molecule in complex molecule results in: Show Answer


Q103) The type of isomerism found in urea molecule is Show Answer


Q104) Anisol is a product obtained from phenol by the reaction known as: Show Answer


Q105) Which of the following is diamagnetic in nature? Show Answer


Q106) Which is the strongest field ligand? Show Answer


Q107) Which of the following is expected to undergo nitration more easily and readily to furnish the corresponding
nitro derivatives employing the usual nitrating mixture? Show Answer


Q108) Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so
obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains: Show Answer


Q109) A positive carbylamine test is given by: Show Answer


Q110) Which of the following is not true for ligand metal complex? Show Answer


Q111) A ligand can also be regarded as Show Answer


Q112) Which one of the following has lowest value of paramagnetic behaviour? Show Answer


Q113) An octahedral complex is formed when central metal atom undergoes hybridization amongst the….orbitals. Show Answer


Q114) Which of the following has the highest molar conductivity in solution? Show Answer


Q115) Which of the following is not meta directing group? Show Answer


Q116) Which among the following is very strong o-, p-directing group? Show Answer


Q117) The type of hybridisation in tetrahedral complexes of metal atom is Show Answer


Q118) Consider the following statements
I. Chain and position isomerism are not possible together between two isomers
II. Tautomerism is a chemical phenomenon which is catalysed by acid as well as base
III. Tautomers are always metamers
IV. Tautomers are always functional isomers
Select the correct answer by using the codes given below Show Answer


Q119) The compound having tetrahedral geometry is Show Answer


Q120) Which of the following is most acidic? Show Answer


Q121) Benzoylacetonato beryllium exhibit isomerism of the type Show Answer


Q122) Which one of the following has a square planar geometry?
(At. No. Fe=26, Co=27, Ni=28, Pt=78) Show Answer


Q123) A solution of potassium ferrocyanide would contains-ions Show Answer


Q124) Which of the following is not considerd as an organometallic compound? Show Answer


Q125) Which statement about coordination number of a cation is true? Show Answer


Q126) Among the following, the strongest base is: Show Answer


Q127) General formula for arenes is: Show Answer


Q128) Which of the following doesn’t have a metal-carbon bond? Show Answer


Q129) Thiophene is separated from benzene by: Show Answer


Q130) Colour of transition metal complexes can be explained by: Show Answer


Q131) Which is most reactive towards electrophilic reagents: Show Answer


Q132) Pick a poor electrolytic conductor complex in solution: Show Answer


Q133) Benzene reacts with sulphuric acid only when the acid is: Show Answer


Q134) The alkane which has only primary hydrogen atom is Show Answer


Q135) Which of the following nitroalkane will not show tautomerism? Show Answer


Q136) Which is low spin complex? Show Answer


Q137) The probable formula for Prussian blue is: Show Answer


Q138) Which represents Reimer-Tiemann reaction? Show Answer


Q139) The complex ion which has no ‘d’-electron in the central metal atom is : Show Answer


Q140) The shape of cobalt hexaammine cation, which has its central cobalt atom surrounded by six ammonia molecules is: Show Answer


Q141) Which ligand is capable of forming low spin as well as high spin complexes? Show Answer


Q142) An aromatic ether is not cleaved by HI even at 525 K. The compound is: Show Answer


Q143) Phenol does not react with: Show Answer


Q144) Ferrocene is an example of Show Answer


Q145) Which compound is zero valent metal complex? Show Answer


Q146) Which of the following compounds is 2, 2, 3-trimethyl hexane? Show Answer


Q147) The formula of phenoxy benzene is: Show Answer


Q148) Ziegler-Natta catalyst is an organometallic compound containing Show Answer


Q149) Ziegler-Natta catalyst is Show Answer


Q150) The tendency to show complex formation is maximum in ….elements. Show Answer


Q151) EDTA has coordination number Show Answer


Q152) Which of the following is used in Friedel-Craft’s acylation reaction? Show Answer


Q153) The centric formula for benzene was proposed by: Show Answer


Q154) Which is the correct statement? Show Answer


Q155) Phenol on sulphonation gives: Show Answer


Q156) The number of double bonds in BHC (gammexane) is: Show Answer


Q157) Which one of the following octahedral complexes will not show geometrical isomerism? (A and B are
monodentate ligands) Show Answer


Q158) Which of the following complex ion is not expected to absorb visible light? Show Answer


Q159) The correct sequence of activating power of a group in benzene is: Show Answer


Q160) The pair of compounds having metals in their highest oxidation state is Show Answer


Q161) The reaction of chloroform with alc. KOH and p-toluidine forms: Show Answer


Q162) Which order is correct in spectrochemical series of ligands? Show Answer


Q163) Correct structures of [E][S]-5-bromo-2,7-dimetyl, non-4-ene is Show Answer


Q164) Which of the following shows geometrical isomerism? Show Answer


Q165) Which of the following does not show optical isomerism? Show Answer


Q166) Which of the following is an explosive? Show Answer


Q167) Rate of substitution in phenol is: Show Answer


Q168) Chlorophyll is a coordination compound having central atom of: Show Answer


Q169) Which of the following statements is incorrect? Show Answer


Q170) Which one is the wrong statement? Show Answer


Q171) According to postulates of Werner’s theory for coordination compounds, which of the following is true? Show Answer


Q172) Atomic numbers of Cr and Fe are respectively 24 and 26. Which of the following is paramagnetic with the
spin of the electron? Show Answer


Q173) Which of the following will give a pair of enantiomorphs? Show Answer


Q174) Which among the following will not show chain isomerism? Show Answer


Q175) Phenol (1 mole) reacts with bromine to give s-tribromophenol. How much bromine is needed? Show Answer


Q176) Dimethyl glyoxime forms a coloured complex with Show Answer


Q177) Which has regular tetrahedral geometry? Show Answer


Q178) In haemoglobin the iron shows oxidation state: Show Answer


Q179) Which can show aromatic character? Show Answer


Q180) Of the following complexes, the one with the largest value of the crystal field splitting is: Show Answer


Q181) Lithium tetrahydridoaluminate is correctly represented as: Show Answer


Q182) Which of the following compounds is generally used for hydrogenation of alkenes? Show Answer


Q183) Which does not obey EAN rule? Show Answer


Q184) Which of the following is not an organometallic compound? Show Answer


Q185) The value of ‘spin only’ magnetic moment for one of the following configuration is 2.84 BM the correct one Show Answer


Q186) Which compound burns with a sooty flame? Show Answer


Q187) Which reaction can produce R—CO—Ar species? Show Answer


Q188) Acidic character of phenol is due to: Show Answer


Q189) In triethylenediamine cobalt(III) chloride the coordination number of cobalt is: Show Answer


Q190) Mark the unidentical compound Show Answer


Q191) A complex compound in which the oxidation number of a metal is zero, is Show Answer


Q192) In the halogenation of aromatic nucleus, the halogen carrier, used to generate the species is: Show Answer


Q193) Benzene is obtained by Show Answer


Q194) IUPAC name of t-butyl chloride is Show Answer


Q195) Phenol is more acidic than cyclohexanol because: Show Answer


Q196) Phenol is less soluble in water. It is due to: Show Answer


Q197) When phenol is treated with excess bromine water, it gives: Show Answer


Q198) Which is high spin complex? Show Answer


Q199) The correct IUPAC name of tartaric acid is Show Answer


Q200) Which of the following compounds has the most acidic nature? Show Answer


Q201) When aniline is heated with benzaldehyde, the product is: Show Answer


Q202) Slow heating of salicylic acid gives: Show Answer


Q203) According to Hückel, monocyclic compounds will show aromaticity when: Show Answer


Q204) When phenol is distilled with zinc dust, it gives: Show Answer


Q205) Which of the following has maximum resonance energy? Show Answer


Q206) Which of the following statements is correct? Show Answer


Q207) Which statement is not correct? Show Answer


Q208) The complex showing a spin-only magnetic moment of 2.82 BM is Show Answer


Q209) The product of acid catalysed hydration of 2-phenyl propene is: Show Answer


Q210) Carbolic acid is the name used for: Show Answer


Q211) Formaldehyde-phenol resin is: Show Answer


Q212) Cyclopentadienyl anion is aromatic due to the presence of: Show Answer


Q213) Which xylene is most easily sulphonated? Show Answer


Q214) Racemic modification can be resolved by Show Answer


Q215) Which of the following structure contain 1 primary and 7 secondary hydrogen atoms? Show Answer


Q216) The empirical formula of naphthalene is: Show Answer


Q217) The chemical formula of diammine silver (I) chloride is Show Answer


Q218) Which group is meta directing? Show Answer


Q219) Which statement is true for cyclohexane? Show Answer


Q220) Ligands in a complex salt are: Show Answer


Q221) When benzene is treated with CO and HCl in presence of anhydrous aluminium chloride, benzaldehyde is
formed. This reaction is known as: Show Answer


Q222) Which complex is diamagnetic? Show Answer


Q223) Meso-tartaric acid is optically inactive due to the presence of Show Answer


Q224) Complex forming tendency increases with: Show Answer


Q225) Among the following compounds the one that is most reactive towards electrophilic nitration is: Show Answer


Q226) Phenol on oxidation gives chloranil. The oxidant used is: Show Answer


Q227) All the common m -directing groups……the benzene ring towards electrophilic substitution reactions Show Answer


Q228) Among the following, the coloured compound is : Show Answer


Q229) Which one does not belong to ligand? Show Answer


Q230) Which one of the following has square planar structure? Show Answer


Q231) Phthalein test is characteristics of ….and is given by it. Show Answer


Q232) 4-methyl benzene sulphonic acid reacts with sodium acetate to give: Show Answer


Q233) Which of the following compounds would exhibit coordination isomerism? Show Answer


Q234) The carboxyl functional group (−COOH) is present in: Show Answer


Q235) Which of the following is an example of electrophilic substitution reaction? Show Answer


Q236) Which of the following is an organometallic compound? Show Answer


Q237) On passing benzene vapour through a tube at 700-800 C or through molten lead we get: Show Answer


Q238) Picric acid is a yellow coloured compound. Its chemical name is: Show Answer


Q239) The ideal starting material for the synthesis of m-chloronitro benzene is: Show Answer


Q240) When ammonia is added to green aqueous solution of nickel(II) sulphate, the colour of the solution changes
to blue violet. This is caused by: Show Answer


Q241) Among the following-phenol, benzoic acid, nitrobenzene and toluene, the compound that undergoes
nitration readily is: Show Answer


Q242) Which one is organometalllic compound? Show Answer


Q243) What are the products formed when an equimolar mixture of benzaldehyde and formaldehyde is heated
with concentrated NaOH? Show Answer


Q244) Which of the following is considered to be an anticancer species? Show Answer


Q245) For benzaldehyde which of the following is incorrect? Show Answer


Q246) The main source of aromatic compounds is: Show Answer


Q247) Phenol on hydrogenation in presence of a nickel catalyst at 160 C gives: Show Answer


Q248) Fac-mer isomerism is associated with which one of the following complexes? (M=central metal) Show Answer


Q249) Which of the following is the correct order of stability of the following four distinct conformation of n
butane? Show Answer


Q250) o-nitrophenol can form hydrogen bonds within the molecule. It thus, has: Show Answer


Q251) The element which does not form mononuclear carbonyl is: Show Answer


Q252) Which of the following is hexadentate ligand? Show Answer


Q253) An octahedral complex is formed when hybrid orbitals of the following type are involved Show Answer


Q254) Which product is not obtained by heating wood or coal in the absence of air? Show Answer


Q255) Dry distillation of calcium benzoate with calcium formate gives: Show Answer


Q256) Each metal possesses: Show Answer


Q257) Aspirin is: Show Answer


Q258) Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. It structure
would be: Show Answer


Q259) Pyridine possesses: Show Answer


Q260) A reagent used for identifying nickel ion is: Show Answer


Q261) Aniline was diazotised and subsequently reduced with stannous chloride and hydrochloric acid to yield: Show Answer


Q262) Pick out the complex compound in which the central metal atom obeys EAN rule strictly Show Answer


Q263) Amongst the following, the compound that can be most readily sulphonated is: Show Answer


Q264) p-chloroaniline and anilium hydrochloride can be distinguished by: Show Answer


Q265) Pyrogallol is….. trihydroxy benzene Show Answer


Q266) p-cresol reacts with chloroform in alkaline medium to give compound (A) which adds hydrogen cyanide to
form compound (B). The latter on acidic hydrolysis gives chiral carboxylic acid. The acid is: Show Answer


Q267) The number of isomeric xylenes is: Show Answer


Q268) Among the following metal carbonyls, C— O bond order is lowest in Show Answer


Q269) Which of the following shell, form an outer octahedral complex? Show Answer


Q270) Friedel-Craft’s reaction of bromobenzene with methyl iodide gives: Show Answer


Q271) Which exist as a pair of mirror image isomers? Show Answer


Q272) Benzene double bonds are not so reactive as those of hexatriene because: Show Answer


Q273) The most stable ion is Show Answer


Q274) In the coal-tar distillation of middle oil, the aromatic compounds present are: Show Answer


Q275) Which of the following system is most stable for a chelate? Show Answer


Q276) The shortest C—O bond order exists in: Show Answer


Q277) Between p-nitrophenol and salicyladehyde, solubility in base is: Show Answer


Q278) (+) and (-) forms of optically active compounds are different in Show Answer


Q279) In which of the following compounds does the central atom obey EAN rule? Show Answer


Q280) Which ligand produces a high crystal field splitting (a strong ligand field)? Show Answer


Q281) Which of the following coordination compounds would exhibit optical isomerism? Show Answer


Q282) Which has maximum paramagnetic character? Show Answer


Q283) Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives: Show Answer


Q284) Sulphonation of benzoic acid produces mainly: Show Answer


Q285) Salicylic acid, aspirin, nylon, plastics and picric acid have a common raw material, namely Show Answer


Q286) Ulmann’s reaction is used for the preparation of: Show Answer


Q287) Which of the following statements is/are incorrect for D − (+) −glyceradehyde? Show Answer


Q288) Which ion is paramagnetic? Show Answer


Q289) Dow process is used for the conversion of chlorobenzene to: Show Answer


Q290) Phenolphthalein is produced on heating phthalic anhydride and conc. sulphuric acid with: Show Answer


Q291) Benzene is converted to toluene by: Show Answer


Q292) The number of ions formed when hexamine copper (II) sulphate is dissolved in water is? Show Answer


Q293) Nickel metal is in highest oxidation state in: Show Answer


Q294) Which of the following complexes show six coordination number? Show Answer


Q295) Which of the following statements is wrong? Show Answer


Q296) Which chloro derivative of benzene among the following would undergo hydrolysis most readily with
aqueous NaOH to furnish the corresponding hydroxyl derivative? Show Answer


Q297) Some salts although containing two different metallic elements give test for only one of them in solution.
Such salts are: Show Answer


Q298) The hybridization of central metal ion and shape of Wilkinson’s catalyst is Show Answer


Q299) An enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon. The
ester formed will be Show Answer


Q300) Which of the following ring is most strained? Show Answer


Q301) Formylchloride has not been prepared so far. Which can function as formylchloride in formylation? Show Answer


Q302) Which one of the following does not give a white precipitate with silver nitrate solution? Show Answer


Q303) Of the following complex ions, which is diamagnetic in nature? Show Answer


Q304) Which of the following are produced from coal-tar? Show Answer


Q305) Chlorine is least reactive in: Show Answer


Q306) Which follows EAN rule? Show Answer


Q307) Which one is bidentate ligand? Show Answer


Q308) The reagent used for conversion of benzene diazonium chloride to benzene is: Show Answer


Q309) Which will not give the usual test for iron? Show Answer


Q310) The first organic compound prepared in the laboratory was Show Answer


Q311) Which of the following statements regarding phenols is not correct? Show Answer


Q312) Which would decolourise cold, aq. potassium permanganate solution? Show Answer


Q313) Which of the following deactivates benzene substitution? Show Answer


Q314) Aniline, chloroform and alc. KOH on heating give: Show Answer


Q315) The incorrect statement for IUPAC system of nomenclature is Show Answer


Q316) When sodium benzene sulphonate is fused with sodium hydroxide (solid), followed by hydrolysis the
product formed is: Show Answer


Q317) The correct order of stability of conformations of cyclohexane is Show Answer


Q318) The increasing order of boiling points of compounds given below is:
(I) 1,2-dihydroxy benzene
(II) 1,3-dihydroxy benzene
(III) 1,4-dihydroxy benzene
(IV) Hydroxyl benzene Show Answer


Q319) The pair of the compounds in which both the metals are in the higher possible oxidation state is Show Answer


Q320) Which of the following are functional isomers? Show Answer


Q321) Phenol is: Show Answer


Q322) Nitrobenzene is generally used for: Show Answer


Q323) Salicylic acid as compared to benzoic acid: Show Answer


Q324) Which ligand is expected to be bidentate? Show Answer


Q325) Which one of the following is most reactive towards aqueous NaOH? Show Answer


Q326) Which is not an aromatic compound? Show Answer


Q327) Which one of the following is wrongly matched? Show Answer


Q328) Stereoisomers have different Show Answer


Q329) Which of the following will show optical isomerism? Show Answer


Q330) Which one group is trivalent in nature? Show Answer


Q331) Benzene contains double bonds but does not give addition reactions because: Show Answer


Q332) The type of isomerism present in nitropentaammine-chromium (III) chloride is : Show Answer


Q333) Amongst the following carboxylic acids the strongest acid is: Show Answer


Q334) The energy difference between chair and the boat conformation of cyclohexane is Show Answer


Q335) Compounds having the same molecular formula but different properties are called Show Answer


Q336) The benzene molecule contains: Show Answer


Q337) The solubility of AgCN increases by the addition of KCN because of: Show Answer


Q338) Alicyclic compounds are Show Answer


Q339) Which of the following compounds reacts slower than benzene in electrophilic bromination? Show Answer


Q340) Replacement of Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4-
dinitrochlorobenzene is readily replaced because: Show Answer


Q341) Salicylic acid on heating with soda lime forms: Show Answer


Q342) Which of the following is the strongest base? Show Answer


Q343) Which of the following will be aromatic? Show Answer


Q344) The correct symbol relating the two Kekule structure of benzene is: Show Answer


Q345) Benzaldehyde can be obtained by the hydrolysis of: Show Answer


Q346) Chromium carbonyl is: Show Answer


Q347) Which of the following reagents may be used to distinguish between phenol and benzoic acid? Show Answer


Q348) Which one of the following shows maximum value of paramagnetic behaviour? Show Answer


Q349) Which of the following species will be diamagnetic? Show Answer


Q350) Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour? Show Answer


Q351) Moth balls contain: Show Answer


Q352) The number of unidentate ligands in the complex ion is called Show Answer


Q353) According to Hückel rule, the number of π-electrons in anthracene is: Show Answer


Q354) In ethane and cyclohexane which one of the following pairs of conformations are more stable? Show Answer


Q355) Among the following which is not π-bonded organometallic compound? Show Answer


Q356) o, p-directing groups are generally: Show Answer


Q357) Aryl halides are less reactive towards nucleophilic substitution reaction as compared to alkyl due halides to: Show Answer


Q358) Which would be least reactive towards bromine? Show Answer


Q359) Which has a smell of oil of winter green? Show Answer


Q360) Which statement is not correct regarding aniline? Show Answer


Q361) Among the following, identify the species with an atom of +6 oxidation state: Show Answer


Q362) Which of the following alkanes contain primary, secondary, tertiary and quaternary carbon atom together? Show Answer


Q363) The hardness of water is estimated by: Show Answer


Q364) The number of tertiary C-atoms in 2,2,4,4-tetra methyl pentane is Show Answer


Q365) The Clemmensen reduction of benzaldehyde gives: Show Answer


Q366) Which one of the following has an optical isomer?
(en=ethylenediamine) Show Answer


Q367) Which fraction of coal-tar is rich in arene? Show Answer


Q368) Which complex cannot ionize in solution? Show Answer


Q369) Ozonolysis of benzene gives: Show Answer


Q370) In benzene, C—C bond length is 1.39 Å; the C—H bond length is: Show Answer


Q371) Which of the following may be used as food preservative? Show Answer


Q372) Which compound is formed when sodium phenoxide is heated with ethyl iodide? Show Answer


Q373) In metal carbonyl (organometallic)complexes, the M— C bond is Show Answer


Q374) The correct order of magnetic moments (spin only values in BM) among the following is
(Atomic no. Mn=25, Fe=26, Co=27) Show Answer


Q375) Aniline and methyl amine can be differentiated by: Show Answer


Q376) The functional group present in cresols is: Show Answer


Q377) Which one of the following compounds is most acidic? Show Answer


Q378) The most unstable configuration of cyclohexane is Show Answer


Q379) In which compound synergic effect is present? Show Answer


Q380) Aqua regia reacts with Pt to yield: Show Answer


Q381) Nitration of toluene takes place at: Show Answer


Q382) Estimation of calcium and magnesium is done by Show Answer


Q383) How many enantiomer pairs are obtained by monochlorination of 2, 3-dimethyl butane? Show Answer


Q384) Common reactions of benzene and its derivatives are: Show Answer


Q385) The attacking species in aromatic sulphonation is: Show Answer


Q386) Which one of the following compound does not react with bromine? Show Answer


Q387) A complex of platinum, ammonia and chlorine produces four ions per molecule in the solution. The structure
consistent with the observation is: Show Answer


Q388) According to effective atomic number rule the central metal acquires: Show Answer


Q389) The correct structure of ethylenediaminetetraacetic acid (EDTA) is Show Answer


Q390) The coordination number of a central metal atom in a complex is determined by Show Answer


Q391) Which ion shows usually the coordination number 6? Show Answer


Q392) Which of the following represents hexadentate ligand? Show Answer


Q393) The value of the ‘spin only’ magnetic moment for one of the following configurations is 2.84 BM. The correct
one is Show Answer


Q394) Choose the IUPAC name of Show Answer


Q395) Which of the following is a heterocyclic compound? Show Answer


Q396) The correct order of reactivity towards electrophilic substitution is: Show Answer


Q397) Increasing order of expected enol content Show Answer


Q398) Out of the following the metal which forms polynuclear carbonyl is: Show Answer


Q399) Picric acid and benzoic acid can be distinguished by: Show Answer


Q400) The compound having the lowest oxidation state of iron is Show Answer


Q401) m-dihydroxybenzene is also called: Show Answer


Q402) The ion which exhibits green colour Show Answer


Q403) Geometrical isomerism is found in coordination compounds having coordination number: Show Answer


Q404) Which one of the following complexes is not expected to exhibit isomerism? Show Answer


Q405) Pure aniline is a: Show Answer


Q406) Aromatic compounds undergo most easily: Show Answer


Q407) Complexes with halide ligands are generally: Show Answer


Q408) Which one of the following is expected to exhibit optical isomerism [en =ethylenediamine]? Show Answer


Q409) Among the following statements on the nitration of aromatic compounds, the false one is: Show Answer


Q410) Which one is not correct for homologous series? Show Answer


Q411) Ferric ion forms a prussian blue coloured solution due to the formation of: Show Answer


Q412) Which of the following can exhibit geometrical isomerism? Show Answer


Q413) A compound contains 2 dissimilar asymmetric C-atoms. The number of optical isomers are Show Answer


Q414) Which compound exhibits optical isomerism? Show Answer


Q415) Ruthenium carbonyl is: Show Answer


Q416) Oxidation state of nitrogen is incorrectly given for
Compound Oxidation state Show Answer


Q417) Which of the following can participate in linkage isomerism? Show Answer


Q418) Ortho-nitrophenol is less soluble in water than p-and m-nitrophenols because: Show Answer


Q419) Among the following most basic compound is: Show Answer


Q420) The EAN of platinum in potassium hexachloroplatinate (IV) is: Show Answer


Q421) The number of ions formed when copper ammonium sulphate is dissolved in water is: Show Answer


Q422) Which of the following compounds is not optically active? Show Answer


Q423) Phenol is less acidic than: Show Answer


Q424) Incorrect statement is Show Answer


Q425) Which of the following complexes exhibits the highest paramagnetic behaviour? Show Answer


Q426) The coordination number in a/an ……… complex may increase to 8. Show Answer


Q427) Compound used for covering wounds caused by bite of mad dog is: Show Answer


Q428) Cinnamic acid on decarboxylation gives: Show Answer


Q429) In which of the following pairs both the complex show optical isomerism? Show Answer


Q430) The name of the ring structure complex compound formed between metal ion and polydentate ligand is Show Answer


Q431) Which statement is wrong with regard to acetaldehyde and benzaldehyde? Show Answer


Q432) Which reaction sequence would be best to prepare 3-chloroaniline from benzene? Show Answer


Q433) Which will show tautomerism? Show Answer


Q434) Which one of the following is most reactive towards electrophilic reagent? Show Answer


Q435) Which one of the following is not an explosive? Show Answer


Q436) The species having tetrahedral shape is Show Answer


Q437) An imperfect complex of a complex compound is 100% ionized; the compound is called: Show Answer


Q438) For which transition metal ions are low spin complexes impossible? Show Answer


Q439) Among the following compounds, the most acidic is: Show Answer


Q440) An aromatic primary amine with cold nitrous acid leads to the formation of: Show Answer


Q441) Chlorobenzene gives DDT when it reacts with: Show Answer


Q442) Which is considered to be an anticancer species? Show Answer


Q443) The compound required for the formation of thermosetting polymer with methanal is: Show Answer


Q444) Which one of the following has highest number of isomers? Show Answer


Q445) Which group is o- and p-directing? Show Answer


Q446) When benzyl chloride is boiled with aqueous solution of lead nitrate in current of carbon dioxide, the main
product is: Show Answer


Q447) Ligands in complex compounds Show Answer


Q448) Aniline is separated by: Show Answer


Q449) Aqueous solution of nickel sulphate on treating with pyridine and then adding a solution of sodium nitrite
gives dark blue crystals of: Show Answer


Q450) Benzyl alcohol is obtained from benzaldehyde by: Show Answer


Q451) The structure of the compound that gives a tribromo derivative on treatment with bromine water is: Show Answer


Q452) Which one of the following complex ions has geometrical isomers? Show Answer


Q453) The strongest acid among the following aromatic compounds is: Show Answer


Q454) The isomers observed in alkanes is Show Answer


Q455) The two compounds pentaamminesulphatocobalt (III) bromide and pentaamminesulphatocobalt(III)
chloride represent: Show Answer


Q456) In the Grignard reaction, which metal forms an organometallic bond? Show Answer


Q457) Aromatic hydrocarbons are the derivatives of: Show Answer


Q458) Benzene easily shows: Show Answer


Q459) When benzoic acid is heated with soda lime, we get: Show Answer


Q460) If a compound absorbs violet colour from the sunlight, then the observed colour is: Show Answer


Q461) Sulphonic acid is used in the manufacture of: Show Answer


Q462) The strongest o-, p-directing group among the following is: Show Answer


Q463) From the stability constant (hypothetical values) given below, predict which is the strongest ligand? Show Answer


Q464) Which has highest m.p.? Show Answer


Q465) Hexafluorocobaltate(III) ion is found to be high spin complex, the probable hybrid state of cobalt in it is: Show Answer


Q466) Which isomeric dibromotoluene is most difficult to make from toluene? Show Answer


Q467) Nitration of salicylic acid gives: Show Answer


Q468) Aniline is reacted with bromine water and the resulting product is treated with an aqueous solution of
sodium nitrite in the presence of dilute HCl. The compound so formed is treated with fluoroboric acid which
is subsequently heated dry. The final product is: Show Answer


Q469) Which of the following is a common donor atom in ligands? Show Answer


Q470) The reaction of aniline with acetyl chloride in presence of NaOH gives: Show Answer


Q471) Which of the following will exhibit maximum ionic conductivity? Show Answer


Q472) Dipole moment of p-nitroaniline, when compared to nitrobenzene (X) and aniline (Y) will be: Show Answer


Q473) The structure of iron pentacarbonyl is: Show Answer


Q474) Turnbull’s blue is: Show Answer


Q475) The trivial name among the following is Show Answer


Q476) The overlapping in benzene is in carbon-carbon orbitals of the type: Show Answer


Q477) Change in composition of coordination sphere yields which type of isomer? Show Answer


Q478) The effective atomic number rule is less likely to apply if the metal-ligand bond: Show Answer


Q479) Potassium ferrocyanide is an example of Show Answer


Q480) 1-phenyl, 2-chloropropane on treatment with aqueous KOH gives mainly: Show Answer


Q481) Which class of compounds can exhibit geometrical isomerism? Show Answer


Q482) A new carbon-carbon bond is formed in: Show Answer


Q483) Which of the following compounds can exhibit tautomerism? Show Answer


Q484) The most basic compound among the following is: Show Answer


Q485) Which of the following has least oxidation state of Fe? Show Answer


Q486) Which is an excellent antiseptic? Show Answer


Q487) Scientist who explained the structures and isomerism in the complex compound was: Show Answer


Q488) The cation that does not form an ammine complex with excess of ammonia is: Show Answer


Q489) The complex ion which has the highest magnetic moment among the following is Show Answer


Q490) Which of the following has highest boiling point? Show Answer


Q491) A nitrogen containing organic compound on heating with chloroform and alcoholic KOH evolved very
unpleasant smelling vapours. The compound could be: Show Answer


Q492) Which of the following 0.1 M complex compound solutions will have the minimum electrical conductivity? Show Answer


Q493) False statement is Show Answer


Q494) The compound 2,2’-bipyridine has the structure Show Answer


Q495) Diethylenetriammine is: Show Answer


Q496) Aniline reacts with excess of bromine to give: Show Answer


Q497) In SCN ligand if N is attached to central atom, the name of ligand is: Show Answer


Q498) One of the following statements regarding Reimer-Tiemann reaction is false: Show Answer


Q499) The structure representing a heterocyclic compound is Show Answer


Q500) Nitroethane can exhibit one of the following kind of isomerism Show Answer


Q501) Benzaldehyde reacts with excess of anhydrous ethyl alcohol in the presence of HCl, gives: Show Answer


Q502) Which pair of isomerism is not possible together? Show Answer


Q503) Which will give chiral molecule? Show Answer


Q504) The neutral ligand is: Show Answer


Q505) p-nitro benzldehyde reacts with concentrated NaOH solution at room temperature to give: Show Answer


Q506) But-1-ene and cyclobutane exhibit Show Answer


Q507) The groups satisfying the secondary valencies of a cation in a complex are called: Show Answer


Q508) Benzene was dicovered by: Show Answer


Q509) Which of the following statements is not correct? Show Answer


Q510) Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives: Show Answer


Q511) Which of the following has maximum probability of showing tautomerism? Show Answer


Q512) The halide which undergoes nucleophilic substitution most readily is: Show Answer


Q513) The ′E′-isomer is Show Answer


Q514) The Baeyer angle strain is minimum in Show Answer


Q515) Among the following ions, which one has the highest unpaired electrons? Show Answer


Q516) Complexes with bidentate ligands are called: Show Answer


Q517) The compound which result from the coordination of carbon monoxide are known as Show Answer


Q518) The insecticide, germicide gammexane is a formulation for: Show Answer


Q519) Which of the following complex ions is expected to absorb visible light? Show Answer


Q520) Which statement is true? Show Answer


Q521) Which can be used for carrying out electrophilic aromatic substitution? Show Answer


Q522) The number of ions formed when cuprammonium sulphate is dissolved in water is Show Answer


Q523) Tautomerism is not exhibited by : Show Answer


Q524) In coal-tar fraction of heavy oil, the aromatic compound present is: Show Answer


Q525) Optical isomerism is shown by octahedral complexes Show Answer


Q526) Which can be hydrolysed most easily? Show Answer


Q527) The most stable configuration of n butane will be Show Answer


Q528) Anhydrous aluminium chloride is used in Friedel-Craft’s reaction because it is: Show Answer


Q529) Which of the following has lowest boiling point? Show Answer


Q530) All ligands are: Show Answer


Q531) Aspirin is known as: Show Answer


Q532) Which of the following has on optical isomer? Show Answer


Q533) The property by virtue of which a compound can rotate the plane of polarised light is known as Show Answer


Q534) Which one of the following is an inner orbital complex as well as diamagnetic in nature? Show Answer


Q535) Benzene reacts with…..to give acetophenone. Show Answer


Q536) Which group would you introduce into a drug or a dye to make it water soluble? Show Answer


Q537) Vanillin, used as a flavouring agent is: Show Answer


Q538) Which one is a mixed ketone? Show Answer


Q539) Transition metals can form complexes in: Show Answer


Q540) Which molecule has tetrahedral geometry? Show Answer


Q541) Which of the following Fischer projection formula is same as D-glyceraldehyde? Show Answer


Q542) Which of the following is non-ionizable? Show Answer


Q543) Increasing order of expected keto content Show Answer


Q544) Which is colourless complex? Show Answer


Q545) Which is not a reasonable structure for dimethyl benzene? Show Answer


Q546) A mixture of benzene and aniline can be separated by: Show Answer


Q547) The electrophile involved in the above reaction is: Show Answer


Q548) Benzoyl Chloride is prepared from benzoic acid by: Show Answer


Q549) Which of the following ions forms most stable complex compound? Show Answer


Q550) Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?
(Atomic no. Cr=24, Mn=25, Fe=26, Co=27) Show Answer


Q551) Which of the following statements is not correct? Show Answer


Q552) When phenol is reacted with chloroform and an alkali like NaOH, the compound formed is salicyladehyde. If
we use pyrene in place of chloroform the product obtained is: Show Answer


Q553) Which of the following is most powerful meta directing group? Show Answer


Q554) Which among the following compounds will show metamerism? Show Answer


Q555) Formation of complex compound can be detected by: Show Answer


Q556) The complex that violates the EAN: Show Answer


Q557) EDTA is a…..ligand. Show Answer


Q558) Thymol, a phenol derivative is mainly used as: Show Answer


Q559) Which of the following complex has zero magnetic moment (spin only)? Show Answer


Q560) The tetrahedral crystal field splitting is only…..of the octahedral splitting. Show Answer


Q561) According to IUPAC nomenclature sodium nitroprusside is named as Show Answer


Q562) The chemical name of DDT is: Show Answer


Q563) Cumene is: Show Answer


Q564) In Etard’s reaction toluene is oxidised to benzaldehyde using: Show Answer


Q565) Which of the following will exhibit geometrical isomerism? Show Answer


Q566) Ferrocene is: Show Answer


Q567) Which one is an outer orbital complex? Show Answer


Q568) Which ion shows only the coordination number 4 in complexes? Show Answer


Q569) Which of the following is not an isomer of but-1-yne? Show Answer


Q570) Which of the following is wrong statements? Show Answer


Q571) Which of the following represents a chelating ligand? Show Answer


Q572) CuCl reacts with KCN solution forming a complex. Coordination number of copper in the complex is: Show Answer


Q573) The terms stereoisomers, enantionmers and diastereomers will refer Show Answer


Q574) Aniline was acetylated. The product on nitration followed by alkaline hydrolysis gave: Show Answer


Q575) Which is the structure of compound 2-(1-cyclobutenyl)-1-hexene? Show Answer


Q576) On explosion TNT gives: Show Answer


Q577) Hexafluoroferrate(III) ion is an outer orbital complex. The number of unpaired electrons present in it is: Show Answer


Q578) Which one amongst the following, exhibit geometrical isomerism? Show Answer


Q579) Chiral molecules are those which are Show Answer


Q580) At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because Show Answer


Q581) A group of atoms can function as a ligand only when Show Answer


Q582) 2-methyl phenol is: Show Answer


Q583) For blasting purpose TNT is mixed with: Show Answer


Q584) During the debromination of meso-dibromobutane, the major compound formed will be Show Answer


Q585) Nitration of benzene is: Show Answer


Q586) Reimer-Tiemann reaction involves a: Show Answer


Q587) Which does not have a carboxyl group? Show Answer


Q588) The oxidation state of Ag in Tollens’ reagent is: Show Answer


Q589) Which of the following is not isomeric with diethyl ether? Show Answer


Q590) Which of the following compounds will show a negative test with phenyl hydrazine? Show Answer


Q591) Friedel-Craft’s reaction is not possible in: Show Answer


Q592) Among the following, the correct statement is Show Answer


Q593) In which of the following p-electrons of the halogens are not involved in delocalisation? Show Answer


Q594) Ethylene diamine is an example of Show Answer


Q595) In chlorobenzene, the —Cl group: Show Answer


Q596) Complexation is shown by: Show Answer


Q597) AgO in Ag(II) complex which is: Show Answer


Q598) Acylation of benzene to produce aliphatic aromatic ketones is called: Show Answer


Q599) Chlorobenzene is prepared commercially by: Show Answer


Q600) When ethyl benzoate is hydrolysed with aqueous alkali, the products present in the medium are: Show Answer


Q601) Which of the following is more basic than aniline? Show Answer


Q602) Name of some compounds are given below. Which one is not in IUPAC system? Show Answer


Q603) For which transition metal ions are low spin complexes possible? Show Answer


Q604) Which one is monodentate ligand? Show Answer


Q605) Cyclic hydrocarbon molecule A has all the carbons and hydrogens in a single plane. All the carbon-carbon
bonds are of same length and less than 1.54 Å and more than 1.34 Å. The C— C—C bond angle will be: Show Answer


Q606) Chlorine reacts with benzaldehyde to give: Show Answer


Q607) Phenol is: Show Answer


Q608) Which one is example of octahedral complex? Show Answer


Q609) Which one of the following statement is correct? Show Answer


Q610) Which of the following fractions obtained in fractional distillation of coal-tar contains benzene and toluene? Show Answer


Q611) The tetrahedral complexes have coordination number Show Answer


Q612) The C—C bond length in benzene is ……than C—C bond length in alkenes. Show Answer


Q613) Which are generally used for preparing derivative of aldehydes and ketones? Show Answer


Q614) En is an example of a: Show Answer


Q615) In which of the following ions has the metal atom EAN as 36? Show Answer


Q616) A characteristics group test for phenolic gp. is: Show Answer


Q617) Which of the following statements is/are incorrect? Show Answer


Q618) Gives are (i) cyclohexanol; (ii) acetic acid; (iii) 2, 4, 6-trinitrophenol; and (iv) phenol. In these the order of
decreasing acidic character will be: Show Answer


Q619) Phenol and benzoic acid can be distinguished by: Show Answer


Q620) The hypothetical complex chloro diaquatriammine cobalt(II) chloride can be represented as: Show Answer


Q621) Which is expected to be paramagnetic? Show Answer


Q622) Among the following four compounds: Show Answer


Q623) Cis-trans -isomerism is found in square planar complexes of the molecular formula: (a and b are
monodentate ligands) Show Answer


Q624) Which ion produces a small crystal field splitting (a weak ligand field)? Show Answer


Q625) Benzene undergoes substitution reaction more easily than addition because: Show Answer


Q626) Isomers have essentially identical Show Answer


Q627) Which of the following pair is not correctly matched? Show Answer


Q628) CuCl dissolves in ammonia forming a complex. The coordination number of copper in the complex is: Show Answer


Q629) Schiff’s bases are formed when aniline is condensed with: Show Answer


Q630) Which of the following is not an organometallic compound? Show Answer


Q631) Which of the following is not an organometallic compound? Show Answer


Q632) The formula of sodium nitroprusside is: Show Answer


Q633) The type of isomerism shown by, 6,6’-disitrodiphenic acid is Show Answer


Q634) Which one of the following compounds forms benzoic acid on oxidation? Show Answer


Q635) Glycinato ligand is: Show Answer


Q636) The example of coordination isomerism is Show Answer


Q637) Coordination compounds have great importance in biological systems. In this context which of the following
statement is incorrect? Show Answer


Q638) Aniline on treating with phosgene gives: Show Answer


Q639) On boiling with conc. hydrobromic acid, phenylethylether will yield: Show Answer


Q640) Enol form is more stable in Show Answer


Q641) Which one readily accepts a proton? Show Answer


Q642) The phenomenon of optical activity will be shown by: Show Answer


Q643) Which one of the following will be able to show cis-trans-isomerism?
(A A′ is unsymmetrical bidentate ligand, ABCD are unidentate ligands.) Show Answer


Q644) The coordination number of a metal in coordination compound is Show Answer


Q645) Mark the correct statement Show Answer


Q646) Which among the following will be named as dibromidobis (ethylene diamine) chromium (III) bromide? Show Answer


Q647) Which one of the following complex is an outer orbital complex?
(Atomic no. Mn=25, Fe=24, Co=27, Ni=28) Show Answer


Q648) Benzene can be directly obtained from: Show Answer


Q649) Chlorobenzene on treatment with Raney nickel or Al in presence of alkali gives: Show Answer


Q650) The compound that undergoes decarboxylation most readily under mild condition is: Show Answer


Q651) Benzaldehyde, when heated with concentrated KOH solution, gives: Show Answer


Q652) 3-chloro-4-methyl benzene sulphonic acid on steam distillation gives: Show Answer


Q653) Which of the following is not an organometallic compound? Show Answer


Q654) Which of the following pairs of compounds are enantiomers? Show Answer


Q655) The complex used as an anticancer agent is Show Answer


Q656) Dyes are formed when diazonium salts react with: Show Answer


Q657) Potassium ferrocyanide is a Show Answer


Q658) The primary and secondary valencies of chromium in the complex ion, dichlorodioxalatochromium (III) , are
respectively. Show Answer


Q659) The correct statement related to IUPAC nomenclature is Show Answer


Q660) Which of the following isomerism is shown by ethyl acetoacetate? Show Answer


Q661) p-nitrophenol is stronger acid than phenol because nitro group is: Show Answer


Q662) Among the following group, which deactivates benzene ring for electrophilic substitution: Show Answer


Q663) Iron has lowest oxidation state in: Show Answer


Q664) The dihedral angle between the two methyl groups in Gauch conformation of n butane is Show Answer


Q665) Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is: Show Answer


Q666) Which of the following cations does not form an ammine complex with excess of ammonia? Show Answer


Q667) Which aromatic acid among the following is weaker than simple benzoic acid? Show Answer


Q668) Which of the following has asymmetric C-atom? Show Answer


Q669) Racemic tartaric acid is optically inactive due to Show Answer


Q670) Nitration of aniline is done in: Show Answer


Q671) A bridging ligand possesses: Show Answer


Q672) What is the neutralization equivalent of benzoic acid? Show Answer


Q673) m-chlorobenzaldehyde on reaction with conc. KOH at room temperature gives: Show Answer


Q674) Excess of silver nitrate solution is added to 100 mL of 0.01 M pentaaqua chloro chromium (III) chloride
solution. The mass of silver chloride obtained in grams is [Atomic mass of silver is 108]. Show Answer


Q675) A similarity between optical and geometrical isomerism is that : Show Answer


Q676) The number of possible theoretical conformations of n-butane are Show Answer


Q677) Salicylic acid when treated with zinc dust gives: Show Answer


Q678) Which of the following species is most stable? Show Answer


Q679) Which of the following reacts with KCN to form benzoin? Show Answer


Q680) Which one is an organometallic compound in the following? Show Answer


Q681) The formula of picramide is: Show Answer


Q682) An alkane forms isomers if minimum number of C-atom is: Show Answer


Q683) Which will form geometrical isomers? Show Answer


Q684) Choose the option which show correct preferential order of groups among the following Show Answer


Q685) Which of the following is polycyclic compound? Show Answer


Q686) Nitrosobenzene can be isolated from nitrobenzene under: Show Answer


Q687) Which of the following complexes is an outer orbital complex? Show Answer


Q688) The function of anhydrous aluminium chloride in the Friedel-Crafts reaction is: Show Answer


Q689) Coordination isomerism is caused by interchange of ligands between the Show Answer


Q690) Which aldehyde is used in the manufacture of perfumes? Show Answer


Q691) Which of the following statements is not correct? Show Answer


Q692) Benzene is a resonance hybrid mainly of two Kekule structures. Hence: Show Answer


Q693) Keto form is more stable in Show Answer


Q694) Which pair of carbon skeleton is an example of isomerism? Show Answer


Q695) Electrolytic reduction of nitrobenzene in weak acidic medium gives: Show Answer


Q696) In complexes, metal atom acts as: Show Answer


Q697) Which of the following compounds exhibit linkage isomerism? Show Answer


Q698) The most stable conformation of chlorohydrin at room temperature is Show Answer


Q699) Which one has square planar geometry? Show Answer


Q700) Which exhibits highest molar conductivity? Show Answer


Q701) Coordination compounds have great importance in biological systems. In this context which of the following
statement is incorrect? Show Answer


Q702) Chlorine is most reactive in: Show Answer


Q703) The C—C bond order in benzene is close to: Show Answer


Q704) Phenol can be converted into salicylic acid by: Show Answer


Q705) The formula of dichlorobis (urea) copper(II) is: Show Answer


Q706) Aromaticity of benzene is due to: Show Answer


Q707) The true statement about benzene is: Show Answer


Q708) Which has highest paramagnetism? Show Answer


Q709) Which is not true ligands metal complex? Show Answer


Q710) Acetophenone on oxidation by perbenzoic acid gives phenyl acetate. The reaction is named as: Show Answer


Q711) Friedel-Craft’s reaction does not occur in case of: Show Answer


Q712) Salol is used as: Show Answer


Q713) Presence of nitro gp. in benzene ring: Show Answer


Q714) Which of the following complexes will show geometrical as well as optical isomerism? (en =ethylene
diamine) Show Answer


Q715) The huge number of organic compounds is due to the fact that Show Answer


Q716) Which one of the following compounds when dissolved in water, gives a solution with pH more than 7? Show Answer


Q717) Formula of ferrocene is: Show Answer


Q718) Which one of the following has largest number of isomers?
(R=alkyl group, en=ethylenediamine) Show Answer


Q719) Which complex is likely to show optical activity? Show Answer


Q720) In the compound lithium tetrahydroaluminate, the ligand is Show Answer


Q721) Statement 1: Highly charged cations are expected to form most strongly acidic hydrated cations
Statement 2: The acidity of a hydrated metal ion depends on the strength of the bond between cation
and oxygen Show Answer


Q722) Statement 1: Hydrazine has two N as donor atoms and behaves as a chelating ligand
Statement 2: Hydrazine is a neutral ligand Show Answer


Q723) Statement 1: EDTA forms complexes with a large number of metal ions
Statement 2: It coordinates with 6 points of attachement to the metal, 4 O-atoms and two N atoms Show Answer


Q724) Statement 1: A compound whose molecule has D configuration will always be dextrorotatory
Statement 2: Compounds having D configuration may be dextrorotatory or levorotatory Show Answer


Q725) Statement 1: Geometrical isomerism is also called C is- trans isomerism.
Statement 2: Tetrahedral complexes shows geometrical isomerism Show Answer


Q726) Statement 1: A hydroxy group directly attached to a carbonyl group constitutes a carboxyl group
Statement 2: Ester is a family of carboxylic acid derivatives in which – OH group is altered by other
group Show Answer


Q727) Statement 1: In keto-enol tautomerism of dicarbonyl compounds, the enol form is preferred in
contrast to the keto-form
Statement 2: The enol form is more stable due to resonance Show Answer


Q728) Statement 1: The conversion of an optically active compound into its enantiomer is called Walden
inversion
Statement 2: A racemic mixture is optically inactive due to internal compensation Show Answer


Q729) Statement 1: Staggered form is less stable than the eclipsed form
Statement 2: The conformation in which the bond pairs of two central atoms are very far from one
another is called staggered form Show Answer