Q 1.The slow hydrolysis of XeF6 gives:
(a) XeO2F2(b) XeO3(c) XeOF4(d) [xeO6]4-
Q 2.The inert gases can be isolated and separated by:
(a) electrolysis of their compounds
(b) fractional distillation of dry air
(c) absorption and desorption on charcoal
(d) reduction of their compounds
Q 3.Which of the following does not exist?
(a) [KrF]+[SbF6]-(b) [KrF3]-[SbF4]+(c) [KrF]+[MoOF5]-(d) [KrF]+[WOF5]-
Q 4.Which of the following will react with fluorine?
(a) He(b) Kr(c) Ar(d) Ne
Q 5.Noble gases not occur in:
(a) ores(b) atmosphere(c) sea water(d) natural gas
Q 6.The noble gas which is not found in atmosphere:
(a) Ne(d) Ar(c) Rh(d) Kr
Q 7.Clatharates not obtained from noble gases and:
(a) water(b) quinol(c) phenol(d) liquid NH3
Q 8.Which of the following compounds is not an “interpseudohalogen” ?
(a) Cl2N3(b) BrCN(c) ClCN(d) ICN
Q 9.Which of the following is not present in an electric discharge tube containing helium:
(a) He+(b) He2+(c) He2(d) He He+
Q 10.Complete hydrolysis of XeI2 does not gives:
(a) Xe(b) O2(c) HF(d) XeOF2
Q 11.Which of the following interhalogen does not exist ?
(a) ClF(b) ClF2(c) BrF5(d) ICl3
Q 12.Which of the following is called anhydrone ?
(a) HClO4(b) Anhyd.Mg(ClO4)2
(c) Anhyd. Ca(ClO4)2(d) KClO3
Q 13.Which of the following is called Berthelot’s salt?
(a) (NaPO3)6(b) NaOCl(c) KClO3(d) KHF2
Q 14.XeO3 is obtained by the complete hydrolysis of:
(a) XeF4(b) XeOF4(c) XeO2F2(d) all of these
Q 15.Which of the following would not have triangular planar shape ?
(a) H3O+(b) Cl(c) Cl(d) None of these
Q 16.The species that undergoes disproportionation in an alkaline medium is:
(a) Mn(b) Cl(c) NO2(d) All
Q 17.Which of the following does not contain iodine?
(a) Iodex(b) Sea weeds (c) Soyabean(d) Tincture iodine
Q 18.Choose the incorrect statement:
(a) boric acid is a hydrogen-bonded molecule
(b) boric acid combines with CuO to give metaborate in the borax bead test
(c) Al2O3 is more acidic than B2O3
(d) Al2O3 is amphoteric and B2O3 is acidic
Q 19.Select the correct statement for CsBr3 :
(a) It is a covalent compound(b) It contains Cs3+ and Br- ions
(c) It contains Cs3+ and B ions(d) It contains Cs+, Br- and lattice Br2 molecule
Q 20.Choose the halogens which are gases at room temperature
(a) Bromine (b) Iodine(c) Chlorine (d) Astatine
Q 21.Iodine can be obtained from NaI solution by the action of:
(a) soluble bromide(b) bromine (c) soluble chloride(d) all of these
Q 22.Greater reactivity of F2 is not due to:
(a) low energy of F—F bond(b) small size
(c) high heat of hydration(d) high energy of F—F bond
Q 23.Which of the following is a superfluid ?
(a) Krypton I (b) Argon II(c) Helium II (d) Helium I
Q 24.Choose the correct statements:
(a) Chlorine is insoluble in water(b) Iodine is a solid
(c) Iodine is more reactive than bromine(d) Bromine is more reactive than chlorine
Q 25.Which liberates Br2 from KBr solution?
(a) HI (b) I2(c) Cl2(d) N2
Q 26.The reaction of sodium thiosulphate with I2 gives:
(a) sulphur iodide(b) sodium sulphite(c) sodium sulphate(d) sodium tetrathionate
Q 27.Which of the following will displace the halogen from the solution of halide ?
(a) Br2 added to NaCl solution(b) Cl added to KF solution
(c) Cl2 added to KBr solution(d) Br2 added to KF solution
Q 28.Choose the angular molecule:
(a) Fe2O2(b) Cl2O(c) KI3(d) none of these
Q 29.Helium II is the most extra ordinary liquid with:
(a) zero viscosity and very high heat conductivity
(b)zero viscosity and low heat conductivity
(c) very high viscosity and zero heat conductivity
(d) very high viscosity and very high heat conductivity
Q 30.When Cl2 gas is passed through hot conc. NaOH solution, compounds formed are:
(a) NaCl(b) NaClO(c) NaClO2(d) NaClO4
Q 31.Which of the following halogens turn starch iodide paper blue?
(a) Cl2(b)Br2(c) F2(d) All of these
Q 32.Electrolysis of brine does not gives:
(a) Cl2(b) H2(c) NaOH(d) O2
Q 33.Iodine imparts brown colour to:
(a) triglycerides(b) benzene(c) alcohol (d) chloroform
Q 34 HI cannot be prepared by the action of conc H2SO4 on Klbecause :
(a) HI is stronger acid than H2SO4(b) H2SO4 is a strong reducing agent
(c) HI is strong reducing agent(d) H2SO4 is stronger acid than HI
Q 35.If a person is injured by the shot of a gun and all the pallets could not be removed, it may cause poisoning by:
(a) Hg (b) Pb(c) Fe (d) As
Answers
1. / b / 2. / c / 3. / c / 4. / b / 5. / c / 6. / b / 7. / d8. / a / 9. / c / 10. / d / 11. / b / 12. / b / 13. / c / 14. / d
15. / c / 16. / c / 17. / c / 18. / c / 19. / d / 20. / c / 21 / b
22. / d / 23. / c / 24. / b / 25. / c / 26. / d / 27. / c / 28 / b
29. / a / 30. / a / 31. / d / 32. / d / 33. / c / 34. / c / 35. / b