Practice Test

Q1) Ozone is not Show Answer

Q2) Which of the following oxides is a peroxide ? Show Answer

Q3) Polyanion formation is maximum in Show Answer

Q4) Acidified solution of sodium thisulphate are unstable because in thiosulphate Show Answer

Q5) Which is an oxidizing agent amongst the following Show Answer

Q6) Which of the following bonds has highest energy ?
Show Answer

Q7) Which is most acidic in nature ? Show Answer

Q8) All the element of oxygen family are Show Answer

Q9) Which of the following hydrides is most acidic ? Show Answer

Q10) Which is the best oxidizing agent among the following ? Show Answer

Q11) A group 16 element exists in monoatomic state in the metallic lattice. It also exists in two crystalline forms. The metal is Show Answer

Q12) Oxygen molecule is Show Answer

Q13) Which of the following causes damage to the building containing calcium and responsible for cough and choking in human? Show Answer

Q14) Which of the following is an oxoacid ? Show Answer

Q15) Which of the following is incorrect? Show Answer

Q16) Photoconductors of xerox machine uses Show Answer

Q17) Bond angle is minimum for Show Answer

Q18) Sulphur molecule is Show Answer

Q19) Ozone belong to which group of the periodic table ? Show Answer

Q20) Identify the incorrect statement with respect to ozone. Show Answer

Q21) Electron affinity of sulphur is Show Answer

Q22) The number of electron that are paired in oxygen molecule are Show Answer

Q23) Oxidation state of oxygen is zero in Show Answer

Q24) There is S-S bond in Show Answer

Q25) Iron sulphide is heated in air to form A , an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is ......... Show Answer

Q26) The manufacturing of sulphuric acid by the contact process involves the catalyst Show Answer

Q27) Which of the following is acidic ? Show Answer

Q28) Which of the following formula represent the fuming sulphuric acid (oleum) ? Show Answer

Q29) Which of the following properties is not correct for ozone ? Show Answer

Q30) Crystalline form of sulphur stable at room temperature is Show Answer

Q31) The element which has a simple cubic lattice in solid state is Show Answer

Q32) Which shows maximum catenation property ? Show Answer

Q33) Which of the following oxides reacts with HCl and NaOH ? Show Answer

Q34) Permonosulphuric acid is known as Show Answer

Q35) The metal with highest electrical resistance at room temperature is Show Answer

Q36) The compound containing coordinate bond is Show Answer

Q37) The compound of sulphur that can be used as refrigerant is Show Answer

Q38) Which would quickly absorb oxygen ? Show Answer

Q39) Which of the following behaves as both oxidising and reducing agent ? Show Answer

Q40) Which of the following is formed by the action of water on sodium peroxide ? Show Answer

Q41) Which of the following is not tetrahedral ? Show Answer

Q42) Which of the following is not linear ? Show Answer

Q43) Oleum is Show Answer

Q44) Oxygen will directly react with each of the following element except. Show Answer

Q45) What is the product formed when ozone reacts with mercury ? Show Answer

Q46) Ozone is formed in the upper atmosphere from oxygen by the action of Show Answer

Q47) An example of a neutral oxide is Show Answer

Q48) Atomicity of sulphur in rhombic sulphur is Show Answer

Q49) Which of the following species is basic and reducing ? Show Answer

Q50) Which of the following oxoacids of sulphur contain sulphur -sluphur double bond ? Show Answer

Q51) Which of the following molecule exists as a cyclic trimer in the solid state ? Show Answer

Q52) The number of S-S bonds in the cyclic trimer of sulphur trioxide is Show Answer

Q53) Which of the following acids is not a peroxo acid ? Show Answer

Q54) Elements of group 16 (except polonium) are called chalcogens because Show Answer

Q55) Which of the following statement is correct ? Show Answer

Q56) The oxidation number of sulphur i the cyclic trimer of sulphur trioxide is Show Answer

Q57) The acid used in lead storage cells is Show Answer

Q58) Which of the following has the highest dipole moment ? Show Answer

Q59) The type of hybridization in water molecule is Show Answer

Q60) Which of the following has the least bond angle? Show Answer

Q61) The number of unpaired electron in the p-subshell of oxygen atom Show Answer

Q62) Which has maximum number of oxo group ? Show Answer

Q63) Which of the following has the largest ionic size ? Show Answer

Q64) Which of the following isoelectronic ions has the lowest ionization energy ? Show Answer

Q65) Which of the following hydrides has the lowest boiling point ? Show Answer

Q66) The number of dative bonds in sulphuric acid molecule is Show Answer

Q67) Oleum is chemically known as Show Answer

Q68) In the manufacturing of sulphuric acid by contact process, tyndall box is used to Show Answer

Q69) A colourless gas with smell of rotten fish is Show Answer

Q70) In which of the following, the oxidation number of sulphur is -1 ? Show Answer

Q71) Structure of thiosulphuric acid is Show Answer

Q72) The structure of the tetrathionate ion is Show Answer

Q73) The structure of dithionate ion is Show Answer

Q74) The structure of oleum is Show Answer

Q75) All the following decompose easily on heating to give oxygen except Show Answer

Q76) Sulphuric has great affinity for water because Show Answer

Q77) When a colourless gas is passed through bromine water only decolourisation takes place. The gas is Show Answer

Q78) Which of the following is not a reducing agent ? Show Answer

Q79) Of the following set which one does not contain isoelectronic species ? Show Answer

Q80) Which one of the following is an amphoteric oxide ? Show Answer

Q81) A gas which cannot be collected over water is Show Answer

Q82) The compound which gives off oxygen on moderate heating is Show Answer

Q83) The first ionization potential in electron volts of nitrogen and oxygen atoms are respectively given by Show Answer

Q84) Hydrolysis of one mole of peroxodisulphuric acid produces Show Answer

Q85) The acid having O-O bond is Show Answer

Q86) There is no S-S bond in Show Answer

Q87) Which shows polymorphisum ? Show Answer

Q88) Number of bonds in sulphuric dioxide is Show Answer

Q89) Caro's acid is Show Answer

Q90) Sulphur in +3 oxidation state is present in Show Answer

Q91) Sea weeds are important source of Show Answer

Q92) Bromine is obtained on a commercial scale from Show Answer

Q93) In which of the following, oxygen has +2 oxidation number Show Answer

Q94) Bad conductor of electricity is Show Answer

Q95) Which of the following is the strongest oxidizing agent? Show Answer

Q96) Iodine readily dissolves in potassium iodine solution giving Show Answer

Q97) Hydrogen fluoride is liquid unlike other hydrogen halides because Show Answer

Q98) Oxidizing action increases in the following order Show Answer

Q99) Which has the highest molar heat of vaporization? Show Answer

Q100) Which of the following bonds will be most polar? Show Answer

Q101) Which one of the following can be purified by sublimation? Show Answer

Q102) Hydrogen bonding does not play any role in boiling of Show Answer

Q103) Which one of the following sequences represents the correct increasing order of bond angles in the given molecules? Show Answer

Q104) Which one of the following elements can have both positive and negative oxidation state? Show Answer

Q105) The element which never acts as a reducing agent in a chemical reaction is Show Answer

Q106) The aqueous solution of which of the following has maximum pH? Show Answer

Q107) Which of the following represents calcium chlorite? Show Answer

Q108) The correct order of reactivity of halogens with alkalies in Show Answer

Q109) Which of the following reaction involves oxidation and reduction? Show Answer

Q110) The halogen that is most easily reduced is Show Answer

Q111) At room temperature, HCl is a gas while HF is a low boiling liquid. This is because Show Answer

Q112) Hydrogen bond is strongest in Show Answer

Q113) For electron affinity of halogens which of the following is correct? Show Answer

Q114) Which one of the following statements about halogens is correct? Show Answer

Q115) The isoelectronic pair is Show Answer

Q116) Mark the smallest atom. Show Answer

Q117) Iodine deficiency in diet is known to cause Show Answer

Q118) Bleaching powder is obtained by the action of chlorine gas and Show Answer

Q119) Which halogen is the most electrospositive? Show Answer

Q120) Bleaching powder reacts with a few drops of conc. HCl to give Show Answer

Q121) Correct order of the size of iodine species is Show Answer

Q122) Which of the following arrangement for the three halogens Cl, Br and I when placed in the order of their increasing electron affinity is correct? Show Answer

Q123) Which statement is correct about halogens? Show Answer

Q124) Elements of which of the following groups will form anions most readily? Show Answer

Q125) The correct sequence of arrangement of the following compounds in order of decreasing oxidation numbers of iodine is Show Answer

Q126) Which of the following elements is extracted commercially by the electrolysis of an aqueous solution of its compound? Show Answer

Q127) Which of the following is most basic? Show Answer

Q128) Which one of the following oxyacids of chlorine is the least oxidizing in nature? Show Answer

Q129) Which is the weakest acid out of HF, HCl, HBr and HI? Show Answer

Q130) Which of the following cannot work as oxidising agent? Show Answer

Q131) Chlorine is liberated when we heat Show Answer

Q132) Which of the following is used in the preparation of chlorine? Show Answer

Q133) Freon is used as a Show Answer

Q134) Which of the following is incorrect with respect to property indicated? Show Answer

Q135) Which of the following elements shows different oxidation states? Show Answer

Q136) What is the oxidation state of chlorine in hypochlorous acid? Show Answer

Q137) Which one of the following halogen liberates oxygen, when passed through hot concentrated KOH solution? Show Answer

Q138) "Fluorosis" disease is caused due to the reaction of ........ With excess of fluoride in the body Show Answer

Q139) The set with correct order of acidity is Show Answer

Q140) Iodine can exist in the oxidation states Show Answer

Q141) Which one of the halogen acid is a liquid? Show Answer

Q142) Euchlorine is a mixture of Show Answer

Q143) Which of the following halogen oxides is ionic? Show Answer

Q144) Which of the following is a false statement? Show Answer

Q145) The bleaching action of chlorine is due to Show Answer

Q146) Strongest hydrogen bonding is shown by Show Answer

Q147) Which of the following sets has strongest tendency to form anions? Show Answer

Q148) Charge distribution in iodine mono-chloride is best represented as Show Answer

Q149) Which among the following is paramagnetic? Show Answer

Q150) Which of the following is not the characteristic of interhalogen compounds? Show Answer

Q151) Which of the following halogen does not exhibit positive oxidation state in its compounds? Show Answer

Q152) Which bond is most polar? Show Answer

Q153) Which of the following sets gives the correct arrangement of the compounds involved based on their bond strengths? Show Answer

Q154) Which of the following elements exhibits the most basic properties? Show Answer

Q155) Dilute hydrochloric acid solution cannot be concentrated by boiling beyond Show Answer

Q156) The compounds used as gaseous insulators in high voltage generators is Show Answer

Q157) Which of the following acid is weakest? Show Answer

Q158) Which one of the following is the true covalent oxide of iodine? Show Answer

Q159) As the atomic number of halogens increases, the halogens Show Answer

Q160) The type of bonding in HCl molecule is Show Answer

Q161) Which of the following species has four lone pairs of electrons? Show Answer

Q162) When chlorine is passed over dry slaked lime at room temperature, the main reaction product is Show Answer

Q163) A solution of potassium bromide is treated with each of the following. Which one would liberate bromine? Show Answer

Q164) An element has an atomic mass 19 and atomic number 9. Its ion is represented by Show Answer

Q165) Fluorine does not show positive oxidation states due to the absence of Show Answer

Q166) Electrolysis of brine produces Show Answer

Q167) Which of the following compounds is the strongest fluorideion acceptor? Show Answer

Q168) Which of the following is arranged in order of increasing ionic character? Show Answer

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

Q170) Which of the following interhalogens does not exist? Show Answer

Q171) Which of the following statements is correct? Show Answer

Q172) Certain ions, with properties similar to halide ions, have two or more atoms of which at least one is nitrogen. Such ions are called Show Answer

Q173) Which of the following is not a pseudohalide ion? Show Answer

Q174) Chlorine can be manufactured by the oxidation of HCl in air by Show Answer

Q175) The ionic character of the metal-halogen bond (M - X) in metal halides decreases in the order Show Answer

Q176) Hydrofluoric acid cannot be stored in glass vessels because it reacts with glass to form Show Answer

Q177) Which of the following shows the arrangement of halide ions in increasing order of reducing property? Show Answer

Q178) Which of the following is not linear? Show Answer

Q179) Which of the following has greatest reducing power? Show Answer

Q180) Which of the following halogens does not from oxyacids? Show Answer

Q181) Which of the following pairs is not correctly matched? Show Answer

Q182) Chlorine cannot displace Show Answer

Q183) Unlike other halogens, fluorine does not show higher oxidation states because Show Answer

Q184) Which of the following belongs to the halogen family? Show Answer

Q185) Fluorine is a stronger oxidizing agent than chlorine in aqueous solution. This is attributed to many factors except Show Answer

Q186) Which of the following halogens has metallic character? Show Answer

Q187) Among F, Cl, Br, and I the lowest ionization potential will be of Show Answer

Q188) The electronegativity follows the order Show Answer

Q189) The electron affinity of the halogens follows the order Show Answer

Q190) The one with the largest size is Show Answer

Q191) Which of the following is the strongest acid? Show Answer

Q192) Halogen which can be prepared from caliche is Show Answer

Q193) Among the halogens, the one which is oxidized by nitric acid is Show Answer

Q194) A greenish yellow gas reacts with an alkali metal hydroxide to form a halite which can be used in fire works and safety matches. The gas and halite respectively are Show Answer

Q195) Which of the following is used as an antiseptic? Show Answer

Q196) Which of the following pairs will give chlorine gas most quickly upon reaction? Show Answer

Q197) Which of the following is most volatile? Show Answer

Q198) Which of the following has the stronger bond? Show Answer

Q199) Which has the highest bond energy? Show Answer

Q200) Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. The explanation for it is that Show Answer

Q201) The correct order of the thermal stability of hydrogen halides (H - X) is Show Answer

Q202) Which of the following is most stable to heat? Show Answer

Q203) Chlorine acts as bleaching agent only in presence of Show Answer

Q204) Bromine can be liberated from potassium bromide solution by the action of Show Answer

Q205) Which of the following is the strongest acid? Show Answer

Q206) The element which exist/s in the liquid state is / are Show Answer

Q207) The halogen which is most easily reduced is Show Answer

Q208) Which one of the following species is not a pseudohalide? Show Answer

Q209) The correct order of acidic strength is Show Answer

Q210) Which species has the maximum number of lone pair of electrons on the central atom? Show Answer

Q211) Identify the incorrect statement among the following. Show Answer

Q212) Increasing order of acid strength of halogen acid is Show Answer

Q213) Solubility of iodine in water may be increased by adding Show Answer

Q214) The correct order of pseudohalide, polyhalide and interhalogen are Show Answer

Q215) Which can do glass etching? Show Answer

Q216) Which is strongest acid? Show Answer

Q217) What products are expected from the disproportionation reaction of hypochlorous acid? Show Answer

Q218) Which of the following is monoatomic ? Show Answer

Q219) Noble gases do not react with other element because Show Answer

Q220) Least chemical activity is shown by Show Answer

Q221) Which of the following fluorides of xenon is impossible ? Show Answer

Q222) Which of the following has zero valency? Show Answer

Q223) A clathrate may be defined as a Show Answer

Q224) The most abundant noble gas found in atmosphere is Show Answer

Q225) The last member of the family of inert gases is Show Answer

Q226) Which of the following is the correct sequence of the noble gases in their group in the period table? Show Answer

Q227) The element which occupy the peaks of ionization energy curve are Show Answer

Q228) The noble gas lighter than air is Show Answer

Q229) Which of the following two are isostructural ? Show Answer

Q230) Noble gases are a group of element which exhibit very Show Answer

Q231) Which one of the following is correct pair with respect to molecular formula of xenon compound and hybridization state of xenon in it? Show Answer

Q232) Argon was discovered by Show Answer

Q233) Which of the following is not correct ? Show Answer

Q234) Which of the following outer electronic configuration represent argon ? Show Answer

Q235) The spectrum of helium is expected to be similar to that of Show Answer

Q236) Percentage of Ar in air is about Show Answer

Q237) Which of the following statement is not true about noble gases ? Show Answer

Q238) Number of unpaired electron in inert gas is Show Answer

Q239) Which of the following cannot be formed ? Show Answer

Q240) The lowest boiling point of helium is due to its Show Answer

Q241) What are the products formed in the reaction of xenon hexafluoride with silicon dioxide ? Show Answer

Q242) The correct order of solubility in water for He, Ne, Ar, Kr and Xe is Show Answer

Q243) If one litre of air is passed repeatedly over heated copper and magnesium till no further reduction in volume takes place, the volume takes place, the volume finally obtained would be approximately Show Answer

Q244) The density of nitrogen gas prepared from air is slightly greater than that of nitrogen prepared by a chemical reaction from a compound of nitrogen due to the presence of the following in aerial nitrogen Show Answer

Q245) The atomic mass of noble gases is determined with the help of the following relationship Show Answer

Q246) The forces acting between noble gas atoms are Show Answer

Q247) Which of the following statement about noble gases is false ? Show Answer

Q248) The noble gas forming maximum number of compounds in Show Answer

Q249) In the following four element, the ionization potential of which one is the highest ? Show Answer

Q250) Sea divers go deep in the sea water with a mixture of which of the following gases? Show Answer

Q251) The coloured discharge tubes for advertisement mainly contain Show Answer

Q252) Which one of the following element is most reactive ? Show Answer

Q253) What is the atomic number (Z) of the noble gas that reacts with fluorine ? Show Answer

Q254) Which noble gas is most soluble in water ? Show Answer

Q255) Which of the following noble gas has highest polarizability ? Show Answer

Q256) Which of the following is an inert gas ? Show Answer

Q257) In the clathrates of xenon with water, the nature of bonding between xenon and water molecule is Show Answer

Q258) Which element out of He, Ar, Kr and Xe forms least number of compound? Show Answer

Q259) Which is a planar molecule? Show Answer

Q260) The fluoride of xenon with zero dipole moment is Show Answer

Q261) Which of the following noble gases is the least polarized ? Show Answer

Q262) Noble gases are difficult to liquefy because their Show Answer

Q263) Which of the following statement is incorrect ? Show Answer

Q264) Helium is suitable for low temperature gas thermometry because of its Show Answer

Q265) Which of the following is superfluid ? Show Answer

Q266) The noble gas which forms interstitial compound with metals is Show Answer

Q267) The noble gas commonly used in cryogenic study is Show Answer

Q268) Which of the following noble gas is radioactive in nature ? Show Answer

Q269) Which species is not known ? Show Answer

Q270) Noble gases can be separated by Show Answer

Q271) Xenon best reacts with Show Answer

Q272) The compound that attacks pyrex glass is Show Answer

Q273) Noble gases do not occur in Show Answer

Q274) Liquid flow from a higher to a lower level. Which of the following liquid can climb up the wall of the glass vessel in which it is placed ? Show Answer

Q275) The ease of liquefaction of noble gases decrease in the order Show Answer

Q276) B.p.t and m.p.t of inert gases are Show Answer

Q277) Which statement is correct ? Show Answer

Q278) Helium-oxygen is mixture used by deep sea divers in preference to nitrogen-oxygen mixture because Show Answer

Q279) Among the noble gases (From He to Xe) only xenon reacts with fluorine to form stable xenon fluorides because xenon Show Answer

Q280) The value of ionization potential for inert gases is Show Answer

Q281) The noble gas was first time discovered by Show Answer

Q282) Which of the following noble gases is not present in atmosphere ? Show Answer

Q283) Which of the following statement is not correct for a noble gas? Show Answer

Q284) Which of the following noble gases does not have an octet of electron in its outermost shell? Show Answer

Q285) Gradual addition of electronic shell in the noble gases causes a decrease in their Show Answer

Q286) The noble gas which was discovered first in the sun and then on the earth Show Answer

Q287) In which of the following groups, when helium is placed, all its properties are satisfied ? Show Answer

Q288) Which one of the following statement regarding helium is incorrect? Show Answer

Q289) Asthma patients use a mixture of ....... for respiration Show Answer

Q290) Which one of the following reactions of xenon compounds not feasible? Show Answer