Practice Test

Q1) In 1886, a French inorganic chemist successfully prepared _______ gas by electrolysis of a solution of KF in HF Show Answer

Q2) Aluminium is a metal but exhibits many chemical similarities to ______ which is a non-metal. Show Answer

Q3) Which of the following is the source of boron? Show Answer

Q4) Which among the following element is most toxic in group 13? Show Answer

Q5) In which of the element +1 oxidation state is stable than +3 Show Answer

Q6) The oxides of aluminium and _____ are amphoteric in nature Show Answer

Q7) Identify the element whose oxide is basic in nature? Show Answer

Q8) ______ has higher value of ionization enthalpy Show Answer

Q9) The only element which is non-metal in the group 13 is Show Answer

Q10) The only member of group 13 which combines with active metal is Show Answer

Q11) Which reaction does not take place with boron? Show Answer

Q12) Identify the statement which is NOT correct? Show Answer

Q13) Borox bead test depends on the formation of Show Answer

Q14) Alum is used as Show Answer

Q15) Orthoboric acid on heating strongly to red hot gives Show Answer

Q16) Borax is also known as Show Answer

Q17) An aqueous solution of ______ is used as mild antiseptic Show Answer

Q18) Aqueous solution of borax is Show Answer

Q19) Aluminium oxide is Show Answer

Q20) Which of the following statements is NOT true? Show Answer

Q21) Carbon is a Show Answer

Q22) Inert pair effect is predominant in Show Answer

Q23) _____ with electronegativity of 2.5 is the most electronegative element of group 14 Show Answer

Q24) The group 14 elements have______electrons in the outermost shell Show Answer

Q25) _____ in +2 state is reducing agent Show Answer

Q26) The oxides of C, Si, and Ge are _____ in nature Show Answer

Q27) Which element is found in transitors? Show Answer

Q28) Which of the following statements is NOT true for carbon? Show Answer

Q29) Red form of PbO is called Show Answer

Q30) Which among the following is the hardest element Show Answer

Q31) Identify the element which does not show catenation Show Answer

Q32) Maximum ability of catenation is shown by Show Answer

Q33) Carbon forms a large number of compounds because it has Show Answer

Q34) Thermodyamically the most stable form of carbon is Show Answer

Q35) Diamond is a non-conductor of electricity because Show Answer

Q36) Heating of graphite in an electric arc in the presence of inert gases such as helium or argon gives Show Answer

Q37) Carbon shows negative oxidation state as Show Answer

Q38) The reason for electrical conductivity of graphite is Show Answer

Q39) Which of the following is not an allotrope of carbon Show Answer

Q40) Graphite is a good conductor of electricity due to presence of Show Answer

Q41) Diamond and graphite Show Answer

Q42) Which of the following is not an amorphous form of C? Show Answer

Q43) Which of the following metals shows allotropy? Show Answer

Q44) Carbon black is prepared by Show Answer

Q45) Purity of diamond is expressed in terms of Show Answer

Q46) _______ is used as black pigment in black ink Show Answer

Q47) Silicon is an important constituent of Show Answer

Q48) Which of the following is not a property of CO? Show Answer

Q49) CO is NOT used in Show Answer

Q50) The high temperature polymers of silicon are called Show Answer

Q51) The element having maximum abundance in earth's crust is Show Answer

Q52) The zeolites which are capable of exchanging reversibly their sodium ions for hardness in water are called Show Answer

Q53) ZSM -5 a type of zeolite is used to convert alcohol in to Show Answer

Q54) _______ play an important role in surgical and cosmetic therapy Show Answer

Q55) Silicon does not form bond with silicon or oxygen because of Show Answer

Q56) The hydrolysis of diborane gives a solution which is Show Answer

Q57) In group 13 elements inert pair effect is more pronounced in Show Answer

Q58) ______ is a useful material for measuring high temperatures Show Answer

Q59) Borax dissolves in water to give______ solution due to hydrolysis Show Answer

Q60) Lead acts as oxidising agent in____ state Show Answer

Q61) Lamp black is obtained by heating _______ and ______ in insufficient air Show Answer

Q62) Elements of group 13 are characterized by electronic configuration of Show Answer

Q63) The most basic oxide is Show Answer

Q64) Which of the following has least Lewis acid character? Show Answer

Q65) Which of the following exist as dimer? Show Answer

Q66) _______ is used for making fire proof clothes Show Answer

Q67) Friedel - crafts reaction involves the use of ______ catalyst Show Answer

Q68) In diborane boron undergo ______ hybridization Show Answer

Q69) Aluminium reacts with NaOH to yield Show Answer

Q70) Nitric acid whether diluted or concentrated Show Answer

Q71) Electronic configuration of outermost shell of group 14 elements is Show Answer

Q72) Element of group 14 Show Answer

Q73) The central atoms undergo .........hybridization if the covalence is more than four Show Answer

Q74) Identify the oxide which is amphoteric? Show Answer

Q75) Tin occurs as Show Answer

Q76) When chlorine is passed through molten tin, the product obtained is Show Answer

Q77) The order of catenation is Show Answer

Q78) Fullerenes on treatment with alkali metals form solid ______ which behave as super conductor below 18 K. Show Answer

Q79) Which of the following is not a property of diamond? It is Show Answer

Q80) Bone black is obtained by Show Answer

Q81) Freon used as refrigerant is Show Answer

Q82) Producer gas is a mixture of Show Answer

Q83) Poisonous gas found in the exhaust fumes of a car is Show Answer

Q84) A colourless gas which burns with blue flame and reduces hot copper oxide to copper is Show Answer

Q85) Haemoglobin of the blood forms carboxy - haemoglobin with Show Answer

Q86) The basic structural unit of silicates is Show Answer

Q87) In CO molecule carbon undergo Show Answer

Q88) Carbon dioxide reacts with water to form Show Answer

Q89) Silicones have empirical formula Show Answer

Q90) The addition of _____ have no action on boron Show Answer

Q91) Blue bead is Show Answer

Q92) Phosphorus exists in the following allotropic forms except Show Answer

Q93) Which of the following elements does not form oxy acids? Show Answer

Q94) Which of the following elements of group 15 does not show allotropy? Show Answer

Q95) The most electronegative element in group 15 is Show Answer

Q96) The tendency of group 16 elements to form catenated compounds is greatest in case of Show Answer

Q97) Which of the following mainly exhibits - 2 oxidation state? Show Answer

Q98) The most abundant element in the earths crust is Show Answer

Q99) Which of the following has highest bond energy? Show Answer

Q100) Oxygen molecule is Show Answer

Q101) Sulphur dioxide is Show Answer

Q102) Which of the following oxy acid of sulphur has +6 oxidation state for sulphur? Show Answer

Q103) The halogen with the highest electron affinity is Show Answer

Q104) The least non - metallic halogen is Show Answer

Q105) The most electronegative element of group 17 is Show Answer

Q106) Which of the following halogens exhibits only one oxidation state? Show Answer

Q107) Which of the following hydrogen halides has the lowest boiling point? Show Answer

Q108) The substance which readily sublimes is Show Answer

Q109) Which of the following halogens shows maximum affinity for hydrogen? Show Answer

Q110) Which of the following is strongest reducing agent Show Answer

Q111) Which of the following is most volatile? Show Answer

Q112) Which of the following is most electropositive? Show Answer

Q113) The colour of chlorine gas is Show Answer

Q114) Which of the following has largest bond dissociation energy? Show Answer

Q115) Which of the following is strongest acid? Show Answer

Q116) Which of the following has maximum boiling point? Show Answer

Q117) Which noble gas has lowest boiling point? Show Answer

Q118) Which noble gas was discovered in chromosphere of sun? Show Answer

Q119) Noble gases exist as Show Answer

Q120) Argon was discoveres by Show Answer

Q121) Which of the following forms maximum number of compounds? Show Answer

Q122) The noble gas with highest ionization energy is Show Answer

Q123) Helium was discovered by Show Answer

Q124) Which of the following is not a noble gas? Show Answer

Q125) The noble gas used in the treatment of cancer is Show Answer

Q126) Which of the following is monoatomic? Show Answer

Q127) Most of the compounds formed by noble gases are with Show Answer

Q128) Man dies in the atmosphere of CO because Show Answer

Q129) Phosphoric acid is syrupy in nature due to Show Answer

Q130) Which of the following is strongest oxidising agent? Show Answer

Q131) Which of the following sulphides is black in colour? Show Answer

Q132) Noble gases are only sparingly soluble in water due to Show Answer

Q133) Catenation is Show Answer

Q134) The electronegativity of Al is similar to Show Answer

Q135) Potassium nitrate on heating gives Show Answer

Q136) Sulphur dioxide is used as Show Answer

Q137) Halogens are volatile because Show Answer

Q138) Which of the following has highest energy? Show Answer

Q139) Which of the following is used as semiconductor? Show Answer

Q140) Boron compounds behave as Lewis acids because of their? Show Answer

Q141) The strongest reducing agent is Show Answer

Q142) Highly pure dilute solution of sodium in liquid ammonia Show Answer

Q143) Nitrogen was discovered by Show Answer

Q144) P - O - P bond is present in Show Answer

Q145) Which of the following is a tribasic acid? Show Answer

Q146) glass is a Show Answer

Q147) Which of the following halides does not exist? Show Answer

Q148) The least thermally stable hydride is Show Answer

Q149) The formula of pernitric acid is Show Answer

Q150) The oxy acid of phosphorus that forms polymers is Show Answer

Q151) Which of the following has smallest bond angle? Show Answer

Q152) Dinitrogen pentoxide dissolves in water to give Show Answer

Q153) Which is most explosive? Show Answer

Q154) Which of the following halides does not exist? Show Answer

Q155) Yellow colour of usual nitric acid is due to the presence of Show Answer

Q156) Laughing gas is prepared by heating Show Answer

Q157) White phosphorus contains Show Answer

Q158) The most acidic among the following is Show Answer

Q159) Which of the following has lowest reducing character? Show Answer

Q160) Sulphuric acid reacts with formic acid to give the main product Show Answer

Q161) Oxygen exhibits positive oxidation state in Show Answer

Q162) The halide ion easiest to oxidise is Show Answer

Q163) Iodine can be liberated as a result of Show Answer

Q164) The halogen with the highest heat of vaporization is Show Answer

Q165) The oxo acid of halogen with maximum acidic character is Show Answer

Q166) Which of the polyhalide ions is not known? Show Answer

Q167) Which of the following reaction will not occur spontaneously? Show Answer

Q168) Which of the following is the least stable halogen? Show Answer

Q169) Which of the following reactions will not occur? Show Answer

Q170) The high viscosity and high boiling point of HF is due to Show Answer

Q171) Which of the following does not exist? Show Answer

Q172) The strongest oxidising agent is Show Answer

Q173) Which of the following is a pseudo halide? Show Answer

Q174) Which of the following compounds has chlorine in +5 oxidation state? Show Answer

Q175) The halogen which is liquid at room temperature is Show Answer

Q176) The oxide containing chlorine in the highest oxidation state is Show Answer

Q177) Which of the following gives blue colour with starch solution? Show Answer

Q178) The most stable oxy of chlorine is : Show Answer

Q179) Bromine is liberated when an aqueous solution of KBr is treated with Show Answer

Q180) Iodine is soluble in water in the presence of Show Answer

Q181) Iodine can form Show Answer

Q182) Moist iodine is oxidised with ozone to Show Answer

Q183) Which of the following is not an interhalogen compound? Show Answer

Q184) Hypoiodous acid is Show Answer

Q185) Which of the following has largest melting point? Show Answer

Q186) Which of the following has dark violet colour? Show Answer

Q187) Which of the following oxides of halogen has maximum oxidation state of halogen atom? Show Answer

Q188) The first noble gas compound prepared by Bartlett was Show Answer

Q189) Which of the following is acidic? Show Answer

Q190) Which of the following species does not exist? Show Answer

Q191) Which of the following oxides of nitrogen is colourless solid or gas? Show Answer

Q192) Which one is known as Caro's acid? Show Answer

Q193) Which is most acidic? Show Answer

Q194) Which of the following statements about anhydrous aluminium chloride is correct? Show Answer

Q195) Which of the following is similar to graphite? Show Answer

Q196) Which of the following has a pyramidal structure? Show Answer

Q197) Oxygen exhibits +2 oxidation state in Show Answer

Q198) The reddish brown gas formed when nitric acid is oxidised by air is Show Answer

Q199) There is no S - S bond in Show Answer

Q200) Which of the following is the strongest acid? Show Answer

Q201) The compound used as refrigerant is Show Answer

Q202) Which of the following salt solutions is basic? Show Answer

Q203) Which of the following trihalide of nitrogen is the least basic? Show Answer

Q204) A hydride of nitrogen which is acidic is Show Answer

Q205) The stability of +2 oxidation state of lead in comparison to +4 can be explained on the basis of Show Answer

Q206) The most ionic chloride is Show Answer

Q207) Which of the following is covalent? Show Answer

Q208) Which of the following sublimes on heating? Show Answer

Q209) Which of the following is associated hydride? Show Answer

Q210) Which of the following is strongest oxidising agent? Show Answer

Q211) Which of the following would have trigonal planar shape? Show Answer

Q212) The anhydride of nitric acid is Show Answer

Q213) Which of the following properties is not correct regarding red phosphorus? Show Answer

Q214) Oxygen can be absorbed by Show Answer

Q215) Nitrogen dioxide cannot be obtained by heating Show Answer

Q216) Which of the following does not contain peroxy linkage? Show Answer

Q217) Which of the following halogen oxides is ionic ? Show Answer

Q218) Which of the following is the constituent of metal superoxides? Show Answer

Q219) Which is true acidic anhydride? Show Answer

Q220) Which of the following is paramagnetic? Show Answer

Q221) Iodine can exist in the oxidation states. Show Answer

Q222) Which of the following chlorides is explosive? Show Answer

Q223) Which of the following cannot undergo disproportionation? Show Answer

Q224) A solution of chlorine in water contains: Show Answer

Q225) Ammonium nitrate on heating gives Show Answer

Q226) Which of the following has maximum electronegativity of carbon? Show Answer

Q227) Which of the following is very strongly acidic oxide? Show Answer

Q228) Normal oxides of alkali and alkaline earth metals react with water giving basic solution and : Show Answer

Q229) The inorganic benzene is name given to Show Answer

Q230) The formula of thiophosphoryl chloride is Show Answer

Q231) Which of the following statements is true about trisilylamine (A) in comparison to trimethylamine (B)? Show Answer

Q232) Which of the following is blue solid? Show Answer

Q233) Which of the following has -O-O- linkage? Show Answer

Q234) Which of the following has smallest bond angle? Show Answer

Q235) Which of the following is a paramagnetic molecule? Show Answer

Q236) The para - periodic acid contains Show Answer

Q237) A gas that can be collected over water is Show Answer

Q238) When thiosulphate is oxidised by iodine, which of the following is produced? Show Answer

Q239) Which one of the following chlorides will not fume in air? Show Answer

Q240) Colour of iodine solution is discharged by shaking it with an aqueous solution of Show Answer

Q241) Nitrogen can be purified from the impurities of oxides of nitrogen and ammonia by passing through: Show Answer

Q242) Which of the following displaces bromine from an aqueous solution of bromide ions? Show Answer

Q243) A gas that cannot be collected over water is Show Answer

Q244) The noble gas compound iso - structural with bromate ion is Show Answer

Q245) Select a molecule with pyramidal shape Show Answer

Q246) Which one of the following is most basic? Show Answer

Q247) The acid which forms two series of salts is Show Answer

Q248) Which is most basic? Show Answer

Q249) Which one of the following does not impart a colour to the flame? Show Answer

Q250) Which of the following is not used as a pigment in paints? Show Answer

Q251) When thiosulphate is oxidised by iodine, which of the following is formed? Show Answer

Q252) Which of the following fluoride does not exist? Show Answer

Q253) Which of the following metal ions plays an important role in muscle contraction? Show Answer

Q254) Which one of the following species is not a pseudo halide? Show Answer

Q255) Blasting of TNT is done by mixing Show Answer

Q256) Reaction of chlorine with hot KOH gives Show Answer

Q257) Which one is Lewis acid? Show Answer

Q258) Which of the following is not correct order of acidic strength? Show Answer

Q259) Which of the following is not correct order of the property mentioned:
Show Answer

Q260) Which of the following statement is not correct? Show Answer

Q261) Among the following the square planar geometry is for: Show Answer

Q262) Which of the following is a cyclic oxo acid? Show Answer

Q263) Which of the following absorbs ozone? Show Answer

Q264) Ozone oxidises aqueous iodine to Show Answer

Q265) In the Ostwald process for the manufacture of nitric acid, ammonia is heated with air and it gets converted to Show Answer

Q266) Ammonia solution dissolves fairly in Show Answer

Q267) Concentrated nitric acid reacts with iodine to give Show Answer

Q268) Nitrogen (I) oxide is produced by Show Answer

Q269) Fixation of nitrogen means its conversion to Show Answer

Q270) Nitrolium is Show Answer

Q271) Blasting of TNT is done by mixing Show Answer

Q272) In Berkland and Eyde process, the raw material used is Show Answer

Q273) Ammonium persulphate on heating under reduced pressure forms Show Answer

Q274) Which of the following reacts with glass? Show Answer

Q275) The manufacture of fluorine is carried out by Show Answer

Q276) A colourless poisonous gas with unpleasant smell of rotten fish is Show Answer

Q277) The formula of freon - 12 is Show Answer

Q278) In which of the following molecules are all the bonds not equal? Show Answer

Q279) The correct order of acidic strength is Show Answer

Q280) The set with correct order of acidity is Show Answer

Q281) Which of the following has highest proton affinity? Show Answer

Q282) Which one of the following has regular tetrahedral structure? Show Answer

Q283) Which of the following oxide is amphoteric in character? Show Answer

Q284) A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange solution. The cation of the metal nitrate is Show Answer

Q285) Heating an aqueous solution of aluminium chloride to dryness will give Show Answer

Q286) What products are expected from the disproportionation reaction of hypochlorous acid? Show Answer

Q287) A metal M forms chlorides in its +2 and +4 oxidation states. Which of the following statements about these chlorides is correct? Show Answer

Q288) Which of the following statement is true? Show Answer

Q289) In which of the following molecules/ions are all the bonds not equal? Show Answer

Q290) Among the following the electron deficient compound is Show Answer

Q291) Which of the following is planar? Show Answer

Q292) Which one of the following molecules will form a zig zag chains of molecules due to hydrogen bonding? Show Answer

Q293) Electrolysis of potassium sulphate yields Show Answer

Q294) The material used in war fares for making smoke screens for military purposes is Show Answer

Q295) The compound having lowest boiling point is Show Answer

Q296) The anhydrous mixture of KF and HF contains which ions? Show Answer

Q297) There is S - S bond in Show Answer

Q298) The strongest bond is present in Show Answer

Q299) The oxidation state of nitrogen is highest in Show Answer

Q300) Which of the following is a monobasic, reducing agent? Show Answer

Q301) Which of the following compound is tribasic acid? Show Answer

Q302) The correct order of solubility in water for He, Ne, Ar, Kr, Xe is Show Answer

Q303) Which of the following is not true? Show Answer

Q304) Argon was discovered by Show Answer

Q305) Nitrogen shows different oxidation state in the range Show Answer

Q306) An example of a neutral oxide is Show Answer

Q307) Which of the following gas mixture is used by the divers inside the sea? Show Answer

Q308) Which of the following is arranged in the increasing order of enthalpy of vaporisation? Show Answer

Q309) Which one of the following oxides is expected to exhibit paramagnetic behaviour? Show Answer

Q310) Which of the following is the electron deficient molecule? Show Answer

Q311) The number of P - O - P bridges in the structure of phosphorus pentoxide and phosphorus trioxide are respectively Show Answer

Q312) Which of the following is an inert gas? Show Answer

Q313) The manufacture of sulphuric acid by the contact process involves the catalyst Show Answer

Q314) Which of the following attacks glass? Show Answer

Q315) In which of the following molecules, the central atom does not follow the octet rule? Show Answer

Q316) Which one of the following statements about halogens is correct? Show Answer

Q317) Which of the following is the most basic oxide? Show Answer

Q318) Which of the following species has a linear shape? Show Answer

Q319) The incorrect statement among the following is Show Answer

Q320) The compound molecular in nature in gas phase but ionic in solid phase is Show Answer

Q321) In which of the following pairs, the two species are iso - structural? Show Answer

Q322) Which of the following oxidation states are the most characteristic for lead and tin respectively: Show Answer

Q323) Which one of the following orders correctly, represents the increasing acid strengths of the given acids: Show Answer

Q324) Which one of the following arrangements does not give the correct picture of the trends indicated against it? Show Answer

Q325) With which one of the following elements silicon should be doped so as to give p - type of semiconductor? Show Answer

Q326) The stability of +1 oxidation state increases in the sequence: Show Answer

Q327) The straight chain polymer is formed by Show Answer

Q328) Among the following which is the strongest oxidising agent? Show Answer

Q329) The maximum number of P - H bonds contained in which of the following molecules? Show Answer

Q330) Which noble gas is most abundant in atmosphere? Show Answer

Q331) Which of the following shows nitrogen with its increasing order of oxidation number? Show Answer

Q332) Which one of the following molecular hydrides acts as a Lewis acid? Show Answer

Q333) The correct order of increasing bond angles in the following species is Show Answer

Q334) The structure of pyrophosphoric acid is: Show Answer

Q335) The structure of pyrosulphuric acid is : Show Answer

Q336) Which of the following reaction does not produce phosphine? Show Answer