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) Bond angle is minimum for Show Answer

Q17) Sulphur molecule is Show Answer

Q18) Ozone belong to which group of the periodic table ? Show Answer

Q19) Identify the incorrect statement with respect to ozone. Show Answer

Q20) Electron affinity of sulphur is Show Answer

Q21) The number of electron that are paired in oxygen molecule are Show Answer

Q22) Oxidation state of oxygen is zero in Show Answer

Q23) There is S-S bond in Show Answer

Q24) 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

Q25) The manufacturing of sulphuric acid by the contact process involves the catalyst Show Answer

Q26) Which of the following is acidic ? Show Answer

Q27) Which of the following formula represent the fuming sulphuric acid (oleum) ? Show Answer

Q28) Which of the following properties is not correct for ozone ? Show Answer

Q29) Crystalline form of sulphur stable at room temperature is Show Answer

Q30) The element which has a simple cubic lattice in solid state is Show Answer

Q31) Which shows maximum catenation property ? Show Answer

Q32) Which of the following oxides reacts with HCl and NaOH ? Show Answer

Q33) The compound containing coordinate bond is Show Answer

Q34) The compound of sulphur that can be used as refrigerant is Show Answer

Q35) Which would quickly absorb oxygen ? Show Answer

Q36) Which of the following behaves as both oxidising and reducing agent ? Show Answer

Q37) Which of the following is formed by the action of water on sodium peroxide ? Show Answer

Q38) Which of the following is not tetrahedral ? Show Answer

Q39) Which of the following is not linear ? Show Answer

Q40) Oleum is Show Answer

Q41) Oxygen will directly react with each of the following element except. Show Answer

Q42) What is the product formed when ozone reacts with mercury ? Show Answer

Q43) Ozone is formed in the upper atmosphere from oxygen by the action of Show Answer

Q44) An example of a neutral oxide is Show Answer

Q45) Which of the following species is basic and reducing ? Show Answer

Q46) Which of the following oxoacids of sulphur contain sulphur -sluphur double bond ? Show Answer

Q47) Which of the following molecule exists as a cyclic trimer in the solid state ? Show Answer

Q48) The number of S-S bonds in the cyclic trimer of sulphur trioxide is Show Answer

Q49) Which of the following acids is not a peroxo acid ? Show Answer

Q50) Elements of group 16 (except polonium) are called chalcogens because Show Answer

Q51) Which of the following statement is correct ? Show Answer

Q52) The oxidation number of sulphur i the cyclic trimer of sulphur trioxide is Show Answer

Q53) The acid used in lead storage cells is Show Answer

Q54) Which of the following has the highest dipole moment ? Show Answer

Q55) The type of hybridization in water molecule is Show Answer

Q56) Which of the following has the least bond angle? Show Answer

Q57) The number of unpaired electron in the p-subshell of oxygen atom Show Answer

Q58) Which has maximum number of oxo group ? Show Answer

Q59) Which of the following has the largest ionic size ? Show Answer

Q60) Which of the following isoelectronic ions has the lowest ionization energy ? Show Answer

Q61) Which of the following hydrides has the lowest boiling point ? Show Answer

Q62) The number of dative bonds in sulphuric acid molecule is Show Answer

Q63) Oleum is chemically known as Show Answer

Q64) In the manufacturing of sulphuric acid by contact process, tyndall box is used to Show Answer

Q65) A colourless gas with smell of rotten fish is Show Answer

Q66) In which of the following, the oxidation number of sulphur is -1 ? Show Answer

Q67) Structure of thiosulphuric acid is Show Answer

Q68) The structure of the tetrathionate ion is Show Answer

Q69) The structure of dithionate ion is Show Answer

Q70) The structure of oleum is Show Answer

Q71) Sulphuric has great affinity for water because Show Answer

Q72) When a colourless gas is passed through bromine water only decolourisation takes place. The gas is Show Answer

Q73) Which of the following is not a reducing agent ? Show Answer

Q74) Of the following set which one does not contain isoelectronic species ? Show Answer

Q75) Which one of the following is an amphoteric oxide ? Show Answer

Q76) A gas which cannot be collected over water is Show Answer

Q77) The compound which gives off oxygen on moderate heating is Show Answer

Q78) The first ionization potential in electron volts of nitrogen and oxygen atoms are respectively given by Show Answer

Q79) Hydrolysis of one mole of peroxodisulphuric acid produces Show Answer

Q80) The acid having O-O bond is Show Answer

Q81) There is no S-S bond in Show Answer

Q82) Which shows polymorphisum ? Show Answer

Q83) Number of bonds in sulphuric dioxide is Show Answer

Q84) Caro's acid is Show Answer

Q85) Sulphur in +3 oxidation state is present in Show Answer

Q86) Bromine is obtained on a commercial scale from Show Answer

Q87) In which of the following, oxygen has +2 oxidation number Show Answer

Q88) Bad conductor of electricity is Show Answer

Q89) Which of the following is the strongest oxidizing agent? Show Answer

Q90) Iodine readily dissolves in potassium iodine solution giving Show Answer

Q91) Hydrogen fluoride is liquid unlike other hydrogen halides because Show Answer

Q92) Oxidizing action increases in the following order Show Answer

Q93) Which has the highest molar heat of vaporization? Show Answer

Q94) Which of the following bonds will be most polar? Show Answer

Q95) Which one of the following can be purified by sublimation? Show Answer

Q96) Hydrogen bonding does not play any role in boiling of Show Answer

Q97) Which one of the following sequences represents the correct increasing order of bond angles in the given molecules? Show Answer

Q98) The element which never acts as a reducing agent in a chemical reaction is Show Answer

Q99) The aqueous solution of which of the following has maximum pH? Show Answer

Q100) Which of the following represents calcium chlorite? Show Answer

Q101) The correct order of reactivity of halogens with alkalies in Show Answer

Q102) The halogen that is most easily reduced is Show Answer

Q103) At room temperature, HCl is a gas while HF is a low boiling liquid. This is because Show Answer

Q104) Hydrogen bond is strongest in Show Answer

Q105) For electron affinity of halogens which of the following is correct? Show Answer

Q106) Which one of the following statements about halogens is correct? Show Answer

Q107) The isoelectronic pair is Show Answer

Q108) Mark the smallest atom. Show Answer

Q109) Bleaching powder is obtained by the action of chlorine gas and Show Answer

Q110) Which halogen is the most electrospositive? Show Answer

Q111) Bleaching powder reacts with a few drops of conc. HCl to give Show Answer

Q112) Correct order of the size of iodine species is Show Answer

Q113) 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

Q114) Which statement is correct about halogens? Show Answer

Q115) The correct sequence of arrangement of the following compounds in order of decreasing oxidation numbers of iodine is Show Answer

Q116) Which of the following elements is extracted commercially by the electrolysis of an aqueous solution of its compound? Show Answer

Q117) Which of the following is most basic? Show Answer

Q118) Which one of the following oxyacids of chlorine is the least oxidizing in nature? Show Answer

Q119) Which is the weakest acid out of HF, HCl, HBr and HI? Show Answer

Q120) Which of the following cannot work as oxidising agent? Show Answer

Q121) Chlorine is liberated when we heat Show Answer

Q122) Which of the following is used in the preparation of chlorine? Show Answer

Q123) Which of the following is incorrect with respect to property indicated? Show Answer

Q124) Which of the following elements shows different oxidation states? Show Answer

Q125) What is the oxidation state of chlorine in hypochlorous acid? Show Answer

Q126) Which one of the following halogen liberates oxygen, when passed through hot concentrated KOH solution? Show Answer

Q127) The set with correct order of acidity is Show Answer

Q128) Which of the following is a false statement? Show Answer

Q129) The bleaching action of chlorine is due to Show Answer

Q130) Strongest hydrogen bonding is shown by Show Answer

Q131) Which among the following is paramagnetic? Show Answer

Q132) Which of the following is not the characteristic of interhalogen compounds? Show Answer

Q133) Which of the following halogen does not exhibit positive oxidation state in its compounds? Show Answer

Q134) Which bond is most polar? Show Answer

Q135) Which of the following sets gives the correct arrangement of the compounds involved based on their bond strengths? Show Answer

Q136) Which of the following elements exhibits the most basic properties? Show Answer

Q137) Which of the following acid is weakest? Show Answer

Q138) Which one of the following is the true covalent oxide of iodine? Show Answer

Q139) As the atomic number of halogens increases, the halogens Show Answer

Q140) The type of bonding in HCl molecule is Show Answer

Q141) Which of the following species has four lone pairs of electrons? Show Answer

Q142) When chlorine is passed over dry slaked lime at room temperature, the main reaction product is Show Answer

Q143) A solution of potassium bromide is treated with each of the following. Which one would liberate bromine? Show Answer

Q144) An element has an atomic mass 19 and atomic number 9. Its ion is represented by Show Answer

Q145) Fluorine does not show positive oxidation states due to the absence of Show Answer

Q146) Electrolysis of brine produces Show Answer

Q147) Which of the following compounds is the strongest fluorideion acceptor? Show Answer

Q148) Which of the following is arranged in order of increasing ionic character? Show Answer

Q149) Which of the following statements is correct? Show Answer

Q150) Which of the following interhalogens does not exist? Show Answer

Q151) Which of the following statements is correct? Show Answer

Q152) Chlorine can be manufactured by the oxidation of HCl in air by Show Answer

Q153) The ionic character of the metal-halogen bond (M - X) in metal halides decreases in the order Show Answer

Q154) Hydrofluoric acid cannot be stored in glass vessels because it reacts with glass to form Show Answer

Q155) Which of the following shows the arrangement of halide ions in increasing order of reducing property? Show Answer

Q156) Which of the following is not linear? Show Answer

Q157) Which of the following has greatest reducing power? Show Answer

Q158) Which of the following halogens does not from oxyacids? Show Answer

Q159) Which of the following pairs is not correctly matched? Show Answer

Q160) Unlike other halogens, fluorine does not show higher oxidation states because Show Answer

Q161) Fluorine is a stronger oxidizing agent than chlorine in aqueous solution. This is attributed to many factors except Show Answer

Q162) Which of the following halogens has metallic character? Show Answer

Q163) Among F, Cl, Br, and I the lowest ionization potential will be of Show Answer

Q164) The electronegativity follows the order Show Answer

Q165) The electron affinity of the halogens follows the order Show Answer

Q166) The one with the largest size is Show Answer

Q167) Which of the following is the strongest acid? Show Answer

Q168) Halogen which can be prepared from caliche is Show Answer

Q169) Among the halogens, the one which is oxidized by nitric acid is Show Answer

Q170) 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

Q171) Which of the following is used as an antiseptic? Show Answer

Q172) Which of the following pairs will give chlorine gas most quickly upon reaction? Show Answer

Q173) Which of the following is most volatile? Show Answer

Q174) Which of the following has the stronger bond? Show Answer

Q175) Which has the highest bond energy? Show Answer

Q176) Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. The explanation for it is that Show Answer

Q177) The correct order of the thermal stability of hydrogen halides (H - X) is Show Answer

Q178) Which of the following is most stable to heat? Show Answer

Q179) Chlorine acts as bleaching agent only in presence of Show Answer

Q180) Bromine can be liberated from potassium bromide solution by the action of Show Answer

Q181) The element which exist/s in the liquid state is / are Show Answer

Q182) The halogen which is most easily reduced is Show Answer

Q183) The correct order of acidic strength is Show Answer

Q184) Which species has the maximum number of lone pair of electrons on the central atom? Show Answer

Q185) Identify the incorrect statement among the following. Show Answer

Q186) Increasing order of acid strength of halogen acid is Show Answer

Q187) Solubility of iodine in water may be increased by adding Show Answer

Q188) Which can do glass etching? Show Answer

Q189) Which is strongest acid? Show Answer

Q190) What products are expected from the disproportionation reaction of hypochlorous acid? Show Answer

Q191) Which of the following is monoatomic ? Show Answer

Q192) Noble gases do not react with other element because Show Answer

Q193) Least chemical activity is shown by Show Answer

Q194) Which of the following fluorides of xenon is impossible ? Show Answer

Q195) Which of the following has zero valency? Show Answer

Q196) The most abundant noble gas found in atmosphere is Show Answer

Q197) The last member of the family of inert gases is Show Answer

Q198) Which of the following is the correct sequence of the noble gases in their group in the period table? Show Answer

Q199) The element which occupy the peaks of ionization energy curve are Show Answer

Q200) The noble gas lighter than air is Show Answer

Q201) Which of the following two are isostructural ? Show Answer

Q202) Noble gases are a group of element which exhibit very Show Answer

Q203) 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

Q204) Which of the following is not correct ? Show Answer

Q205) Which of the following outer electronic configuration represent argon ? Show Answer

Q206) The spectrum of helium is expected to be similar to that of Show Answer

Q207) Number of unpaired electron in inert gas is Show Answer

Q208) Which of the following cannot be formed ? Show Answer

Q209) What are the products formed in the reaction of xenon hexafluoride with silicon dioxide ? Show Answer

Q210) The correct order of solubility in water for He, Ne, Ar, Kr and Xe is Show Answer

Q211) Which of the following statement about noble gases is false ? Show Answer

Q212) The noble gas forming maximum number of compounds in Show Answer

Q213) In the following four element, the ionization potential of which one is the highest ? Show Answer

Q214) The coloured discharge tubes for advertisement mainly contain Show Answer

Q215) Which one of the following element is most reactive ? Show Answer

Q216) Which noble gas is most soluble in water ? Show Answer

Q217) Which of the following noble gas has highest polarizability ? Show Answer

Q218) Which of the following is an inert gas ? Show Answer

Q219) In the clathrates of xenon with water, the nature of bonding between xenon and water molecule is Show Answer

Q220) Which is a planar molecule? Show Answer

Q221) The fluoride of xenon with zero dipole moment is Show Answer

Q222) Which of the following noble gases is the least polarized ? Show Answer

Q223) Noble gases are difficult to liquefy because their Show Answer

Q224) Which of the following statement is incorrect ? Show Answer

Q225) The noble gas which forms interstitial compound with metals is Show Answer

Q226) The noble gas commonly used in cryogenic study is Show Answer

Q227) Which of the following noble gas is radioactive in nature ? Show Answer

Q228) Which species is not known ? Show Answer

Q229) Noble gases can be separated by Show Answer

Q230) Xenon best reacts with Show Answer

Q231) The compound that attacks pyrex glass is Show Answer

Q232) Noble gases do not occur in Show Answer

Q233) The ease of liquefaction of noble gases decrease in the order Show Answer

Q234) Helium-oxygen is mixture used by deep sea divers in preference to nitrogen-oxygen mixture because Show Answer

Q235) Among the noble gases (From He to Xe) only xenon reacts with fluorine to form stable xenon fluorides because xenon Show Answer

Q236) Which of the following noble gases does not have an octet of electron in its outermost shell? Show Answer

Q237) The noble gas which was discovered first in the sun and then on the earth Show Answer

Q238) In which of the following groups, when helium is placed, all its properties are satisfied ? Show Answer

Q239) Which one of the following statement regarding helium is incorrect? Show Answer

Q240) Which one of the following reactions of xenon compounds not feasible? Show Answer

Q241) Which shows maximum catenation property? Show Answer

Q242) The order of electron affinity of B, C, N and O is Show Answer

Q243) Atomicity of sulphur in orthorhombic (alpha sulphur) is Show Answer

Q244) Which of the following hydride is most acidic? Show Answer

Q245) Which of the following hydrides shows the highest boiling point? Show Answer

Q246) The type of hybridisation in water molecule is Show Answer

Q247) S-S bond is present in Show Answer

Q248) Which is the best oxidising agent among group 16 elements? Show Answer

Q249) Elements called halogens belong to which group in the periodic table? Show Answer

Q250) The chemical formula of buryte, the salt of sulphur is Show Answer

Q251) Among the group 16 elements the only element which does not exist as octa-atomic solid is Show Answer

Q252) Sulphurous acid is reducing agent due to Show Answer

Q253) Peroxodysulphuric acid is known as Show Answer

Q254) Which is the characteristic of oxygen molecule? Show Answer

Q255) Which is most acidic in nature? Show Answer

Q256) Sodium peroxide on hydrolysis liberates Show Answer

Q257) The oxidation number of sulphur in iron pyrites is Show Answer

Q258) Which of the following behaves as both oxidising and reducing agents? Show Answer

Q259) Which of the following is responsible for cough and choking in human? Show Answer

Q260) Which of the following is 'V' shaped? Show Answer

Q261) In group 16 the photosensitive elements are Show Answer

Q262) The abnormally high boiling point of water is due to Show Answer

Q263) Iron sulphide on combustion forms an oxide of sulphur which is dissolved in water to give an acid. The basicity of this acid is Show Answer

Q264) A considerable part of the harmful ultra violet radiation of the sun does not reach the surface of the earth. This is because high above the earth's atmosphere there is a layer of Show Answer

Q265) Which oxide is of different type than others? Show Answer

Q266) In the upper layers of atmosphere ozone is formed by the Show Answer

Q267) Which one of the following is an amphoteric oxide? Show Answer

Q268) All the elements of oxygen family are Show Answer

Q269) Which of the following hydrides has the lowest boiling point? Show Answer

Q270) Peroxymonosulphuric acid is known as Show Answer

Q271) Which of the following ions does not have S-S linkage? Show Answer

Q272) Hydrides of oxygen and sulphur differ in physical state due to Show Answer

Q273) The compound formed when Mercury comes in contact with ozone is Show Answer

Q274) The shape of all tetrafluorides of group 16 is Show Answer

Q275) The only element in group 16 whose hydride is colourless liquid is Show Answer

Q276) Ozone is considered to be Show Answer

Q277) When sugar is treated with conc. sulphuric acid, the sugar is charred. In this process, sugar is Show Answer

Q278) Which of the following is the best scientific method to test presence of water in a liquid? Show Answer

Q279) Which of the following mixture is chromic acid? Show Answer

Q280) Ozone deplete due to the formation of following compound in Antarctica Show Answer

Q281) Which one of the following is an oxyacid? Show Answer

Q282) The strongest acid among the following is Show Answer

Q283) Electronic configuration of outermost shell of element of group 16 is Show Answer

Q284) Hydrolysis of one mole of peroxydisulphuric acid produces Show Answer

Q285) Which one of the following oxides is neutral? Show Answer

Q286) Which is the most stable allotrope of sulphur? Show Answer

Q287) The element that does NOT form acidic oxide is Show Answer

Q288) Which among the following compounds does not act as a reducing agent? Show Answer

Q289) In preparation of sulphuric acid from sulphur dioxide in lead chamber process. What substance is used as a catalyst? Show Answer