AFMC–Past papers<br />CHEMISTRY - UNSOLVED PAPER - 1997<br />
SECTION – I (Total Marks :50)<br />Single Correct Answer Type<br />There are five parts in this question. Four choices are...
01<br />Problem<br />Orlon is polymer of <br />Acrylonitrile<br />Strene<br />Tetrafluoroethylene<br />Vinyl chloride<br />
Problem<br />02<br />Marsh gas contains<br />H2S<br />C2H2<br />CO<br />CH4<br />
Problem<br />03<br />Which of the following is true for diamond?<br />Diamond is a bad conductor of heat<br />Diamond is a...
Problem<br />04<br />In the commercial gasolines the type of hydrocarbons which are more desirable is<br />Linear unsatura...
Problem<br />05<br />Which lanthanide is most commonly used?<br />Thorium<br />Lanthanum<br />Cerium<br />Nobelium<br />
Problem<br />06<br />Electronic formula of chromium is<br />3d44s1<br />3d64s1<br />3d44s2<br />3d54s1<br />
Problem<br />07<br />Which of the following reacts with chloroform and a base to form phenylisocyanide?<br />Benzene <br /...
Problem<br />08<br />Acetamide reacts with P2O2 (Phosphorus pentoxide) to give<br />Ethyl cyanide<br />Methyl cyanide<br /...
Problem<br />09<br />C12H22O11+H2O                                  C6H12O6(aq)+C6H12O6(aq)<br />Sucrose  fructose glucose...
Problem<br />10<br />If Ksp for HgSO4 is 6.4 x10-5, then solubility of the salt is<br />6.4 x 10-5<br />8 x 10-3<br />6.4 ...
Problem<br />11<br />Which of the following can be used for dating fossil?<br />157N<br />146C<br />4020Ca<br />126C<br />
Problem<br />12<br />Which of the following is not efflorescent?<br />NaOH<br />Cu SO4<br />MgSO4<br />Hydrated Cu SO4<br />
Problem<br />13<br />How much quick lime can be obtained from 25g?<br />56g<br />14g<br />60g<br />28g<br />
Problem<br />14<br />Cyanide and isoyanide are isomers of type<br />Tautomer<br />Positional<br />Structural<br />Function...
Problem<br />15<br />Which of the following is heavy water?<br />H20<br />H2018<br />D20<br />H2O16<br />
Problem<br />16<br />The test of ozone O3 can be done by<br />Au<br />Ag<br />Cu<br />Hg<br />
Problem<br />17<br />Which of the following gases has electronic configuration 1s22s22p1x2p1y2p1z?<br />Hydrogen<br />Oxyg...
Problem<br />18<br />Which of the following statement is correct?<br />Hydrogen will not be liberated at anode<br />Hydrog...
Problem<br />19<br />Which of the following is the largest stable atom?<br />U <br />Bi<br />Pb<br />A1<br />
Problem<br />20<br />Which of the following has square planar structure?<br />[Ni(CN)4]2-<br />NiC14]2-<br />[Cr(CN)6]3-<b...
Problem<br />21<br />Which of the following is paramagnetic?<br />[Ni(CN)4]2-<br />[Ni(CO)4]<br />NiC14]2-<br />[Co(NH3)6]...
Problem<br />22<br />Which statement is not correct about alcohol?<br />Alcohol of less no. of carbon atoms is less solubl...
Problem<br />23<br />Which of the following is a simple ether?<br />C6H,OCH3<br />CH3OCH3<br />C6H5OC2H5<br />C2H5OCH3<br />
Problem<br />24<br />Arrange the following in increasing order of basicity<br /> CH3NH„ (CH3)2NH, C6H5NH2, (CH3).N<br />C6...
Problem<br />25<br />Arrange the following in increasing order of acidity H3P04, H2C03 HC1, Hi<br />H2C03, H3P04, HC1, HI<...
Problem<br />26<br />Which of the following atomic mass of uranium is the most radio-active ?<br />226<br />238<br />248<b...
Problem<br />27<br />Which of the following is the IUPAC name of the compound?<br />Image*<br />4-methyl-2-hexanol<br />4-...
Problem<br />28<br />If electron falls from n = 3 to n = 2, then emitted energy is<br />1.9 eV<br /> 10-2eV<br /> 0-65 eV<...
Problem<br />29<br />Arrange the elements - Na, Rb, K, Mg in increasing order of atomic radius<br />Na < Mg < K < Rb<br />...
Problem<br />30<br />Which of the following cannot be formed ?<br />He	<br />He2+<br />He	<br />He+.<br />
Problem<br />31<br />Number of protons, neutrons and electrons in the element 89y231 is<br />89, 142, 89 <br />89, 231, 89...
Problem<br />32<br />The position is<br />1H1<br />-1e0<br />0n1<br />+1e0<br />
Problem<br />33<br />When oxalic acid is dehydrated by conc. H2SO4, then it forms<br />CO2<br />C+CO2<br />CO + CO2<br />C...
Problem<br />34<br />What is the value of decay constant of a compound having half-life time, (T)1/2=2.95 days?<br />2.7 x...
Problem<br />35<br />Which of the following has the highest  weight ?<br />normal adult man<br />10 litres of Hg<br />all ...
Problem<br />36<br />Volume occupied by 4. 4 grams of C02 is<br />224 litres<br />2.24 litres<br />22.4 x 102litres<br />2...
Problem<br />37<br /> First law of thermodynamics is represented by the Equation<br />W = Q +∆E<br />&E = Q + W<br />Q = W...
Problem<br />38<br />Which of the following is correct relationship ?<br />∆G = ∆H - T∆S<br />∆G =∆H + T∆S<br />∆G + ∆H = ...
Problem<br />39<br />Number of isomers of C4H10 is<br />4<br />Isomerism not exist<br />3<br />2<br />
Problem<br />40<br />In Friedal - Craft's alkylation, besides A1C13 the other reactants are<br />C6H6 + NH2<br />C6H6 + CH...
Problem<br />41<br />Which of the following is a mixed ketone ?<br />benzophenone<br />3-pentanone<br />butanone<br />acet...
Problem<br />42<br />Iodoethane reacts with sodium in the presence of dry ether. The product is <br />Butane<br />Pentane<...
Problem<br />43<br />BF3 is acid according to<br />Bronzed & Lowry<br />Arrhenius<br />Lewis	<br />All of these<br />
Problem<br />44<br />A base dissolved in water yields a solution with a hydroxide ion concentration of 0-05 mol litre~ . T...
Problem<br />45<br />Azeotropic mixture of HC1 and H20 has<br />36% HC1	<br />48% HC1<br />20.2%HC1<br />22.2%HC1<br />
Problem<br />46<br />In which of the following case Kp is less than kc?<br />2SO2+O2=2SO3<br />PC15=PC13+C12<br />H2+C12=2...
Problem<br />47<br />If concentration of reactants is increased by x then the K becomes<br />K+x<br />In K/x<br />K<br />K...
Problem<br />48<br />Which of the following is ferroelectric compound/<br />Pb2O3<br />BaTiO3<br />PbZrO3<br />K4[Fe(CN)6]...
Problem<br />49<br />Which of the following shows geometrical isomerism?<br />Propene<br />1-bithene<br />1, 1-dichlorobut...
Problem<br />50<br />Aromatic hydrocarbon shows mostly<br />substitution electrophilic reactions<br />addition electrophil...
For solution visit www.vasista.net<br />
Upcoming SlideShare
Loading in …5
×

AFMC Chemistry 1997

488 views

Published on

Published in: Education, Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
488
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

AFMC Chemistry 1997

  1. 1. AFMC–Past papers<br />CHEMISTRY - UNSOLVED PAPER - 1997<br />
  2. 2. SECTION – I (Total Marks :50)<br />Single Correct Answer Type<br />There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate<br />
  3. 3. 01<br />Problem<br />Orlon is polymer of <br />Acrylonitrile<br />Strene<br />Tetrafluoroethylene<br />Vinyl chloride<br />
  4. 4. Problem<br />02<br />Marsh gas contains<br />H2S<br />C2H2<br />CO<br />CH4<br />
  5. 5. Problem<br />03<br />Which of the following is true for diamond?<br />Diamond is a bad conductor of heat<br />Diamond is a good conductor of electricity<br />Diamond is made up of C,H and O<br />Diamond is soft<br />
  6. 6. Problem<br />04<br />In the commercial gasolines the type of hydrocarbons which are more desirable is<br />Linear unsaturated hydrocarbon<br />Branched hydrocarbon<br />Toluene<br />Straight-chain hydrocarbon<br />
  7. 7. Problem<br />05<br />Which lanthanide is most commonly used?<br />Thorium<br />Lanthanum<br />Cerium<br />Nobelium<br />
  8. 8. Problem<br />06<br />Electronic formula of chromium is<br />3d44s1<br />3d64s1<br />3d44s2<br />3d54s1<br />
  9. 9. Problem<br />07<br />Which of the following reacts with chloroform and a base to form phenylisocyanide?<br />Benzene <br />Aniline<br />Nitrobenzene<br />Phenol<br />
  10. 10. Problem<br />08<br />Acetamide reacts with P2O2 (Phosphorus pentoxide) to give<br />Ethyl cyanide<br />Methyl cyanide<br />Ethyl isocyanate<br />Methyl cyanate<br />
  11. 11. Problem<br />09<br />C12H22O11+H2O C6H12O6(aq)+C6H12O6(aq)<br />Sucrose fructose glucose<br />In the above reaction dilute H2SO4 is<br />Heterogeneous catalyst<br />Homogeneous catalyst<br />Does not effect the reaction<br />None of these<br />
  12. 12. Problem<br />10<br />If Ksp for HgSO4 is 6.4 x10-5, then solubility of the salt is<br />6.4 x 10-5<br />8 x 10-3<br />6.4 x 10-3<br />8 x 10-6<br />
  13. 13. Problem<br />11<br />Which of the following can be used for dating fossil?<br />157N<br />146C<br />4020Ca<br />126C<br />
  14. 14. Problem<br />12<br />Which of the following is not efflorescent?<br />NaOH<br />Cu SO4<br />MgSO4<br />Hydrated Cu SO4<br />
  15. 15. Problem<br />13<br />How much quick lime can be obtained from 25g?<br />56g<br />14g<br />60g<br />28g<br />
  16. 16. Problem<br />14<br />Cyanide and isoyanide are isomers of type<br />Tautomer<br />Positional<br />Structural<br />Functional<br />
  17. 17. Problem<br />15<br />Which of the following is heavy water?<br />H20<br />H2018<br />D20<br />H2O16<br />
  18. 18. Problem<br />16<br />The test of ozone O3 can be done by<br />Au<br />Ag<br />Cu<br />Hg<br />
  19. 19. Problem<br />17<br />Which of the following gases has electronic configuration 1s22s22p1x2p1y2p1z?<br />Hydrogen<br />Oxygen<br />Fluorine<br />Nitrogen<br />
  20. 20. Problem<br />18<br />Which of the following statement is correct?<br />Hydrogen will not be liberated at anode<br />Hydrogen has oxidation number -1 and +1<br />Hydrogen has same Ionization potential as alkali metals<br />Hydrogen has same electro negativity as halogens<br />
  21. 21. Problem<br />19<br />Which of the following is the largest stable atom?<br />U <br />Bi<br />Pb<br />A1<br />
  22. 22. Problem<br />20<br />Which of the following has square planar structure?<br />[Ni(CN)4]2-<br />NiC14]2-<br />[Cr(CN)6]3-<br />[Ni(CO)4]<br />
  23. 23. Problem<br />21<br />Which of the following is paramagnetic?<br />[Ni(CN)4]2-<br />[Ni(CO)4]<br />NiC14]2-<br />[Co(NH3)6]3+<br />
  24. 24. Problem<br />22<br />Which statement is not correct about alcohol?<br />Alcohol of less no. of carbon atoms is less soluble in water than alcohol of high no of carbon atoms<br />Alcohol is lighter than water<br />Alcohol evaporates quickly<br />All of these<br />
  25. 25. Problem<br />23<br />Which of the following is a simple ether?<br />C6H,OCH3<br />CH3OCH3<br />C6H5OC2H5<br />C2H5OCH3<br />
  26. 26. Problem<br />24<br />Arrange the following in increasing order of basicity<br /> CH3NH„ (CH3)2NH, C6H5NH2, (CH3).N<br />C6H5NH2 < (CH3)3N < CH3NH2 < (CH3)2NH<br />Reverse of (a)<br />(ch3)3n < (ch3)2nh < ch3nh2 < c6h5nh2<br />Reverse of (c)<br />
  27. 27. Problem<br />25<br />Arrange the following in increasing order of acidity H3P04, H2C03 HC1, Hi<br />H2C03, H3P04, HC1, HI<br />H2P04, HC1, H2C03, HI<br />HC1, HI, H2C03, H3P04<br />H3P04, H2C03HC1, HI<br />
  28. 28. Problem<br />26<br />Which of the following atomic mass of uranium is the most radio-active ?<br />226<br />238<br />248<br />235<br />
  29. 29. Problem<br />27<br />Which of the following is the IUPAC name of the compound?<br />Image*<br />4-methyl-2-hexanol<br />4-methyl-3-hexanol<br />2-methyl-3-hexanol<br />3-methyl-4-hexanol<br />
  30. 30. Problem<br />28<br />If electron falls from n = 3 to n = 2, then emitted energy is<br />1.9 eV<br /> 10-2eV<br /> 0-65 eV<br /> 12-09 eV.<br />
  31. 31. Problem<br />29<br />Arrange the elements - Na, Rb, K, Mg in increasing order of atomic radius<br />Na < Mg < K < Rb<br />Mg < Na < K < Rb<br />Rb < K < Mg < Na<br />K < Na < Mg < Rb.<br />
  32. 32. Problem<br />30<br />Which of the following cannot be formed ?<br />He <br />He2+<br />He <br />He+.<br />
  33. 33. Problem<br />31<br />Number of protons, neutrons and electrons in the element 89y231 is<br />89, 142, 89 <br />89, 231, 89<br />89, 71, 89<br />89, 89, 242<br />
  34. 34. Problem<br />32<br />The position is<br />1H1<br />-1e0<br />0n1<br />+1e0<br />
  35. 35. Problem<br />33<br />When oxalic acid is dehydrated by conc. H2SO4, then it forms<br />CO2<br />C+CO2<br />CO + CO2<br />CO<br />
  36. 36. Problem<br />34<br />What is the value of decay constant of a compound having half-life time, (T)1/2=2.95 days?<br />2.7 x 10-6s-1<br />2.7 x 10-5s-1<br />3.105s-1<br />2.7 x 106s-1<br />
  37. 37. Problem<br />35<br />Which of the following has the highest weight ?<br />normal adult man<br />10 litres of Hg<br />all have same weight.<br />1 m3 water<br />
  38. 38. Problem<br />36<br />Volume occupied by 4. 4 grams of C02 is<br />224 litres<br />2.24 litres<br />22.4 x 102litres<br />22.4 litres<br />
  39. 39. Problem<br />37<br /> First law of thermodynamics is represented by the Equation<br />W = Q +∆E<br />&E = Q + W<br />Q = W -∆E <br />∆E = Q - W.<br />
  40. 40. Problem<br />38<br />Which of the following is correct relationship ?<br />∆G = ∆H - T∆S<br />∆G =∆H + T∆S<br />∆G + ∆H = T∆S<br />∆H =∆G - T∆S.<br />
  41. 41. Problem<br />39<br />Number of isomers of C4H10 is<br />4<br />Isomerism not exist<br />3<br />2<br />
  42. 42. Problem<br />40<br />In Friedal - Craft's alkylation, besides A1C13 the other reactants are<br />C6H6 + NH2<br />C6H6 + CH3Cl<br />C6H6+ CH3COC1<br />C6H6 + CH4.<br />
  43. 43. Problem<br />41<br />Which of the following is a mixed ketone ?<br />benzophenone<br />3-pentanone<br />butanone<br />acetophenone<br />
  44. 44. Problem<br />42<br />Iodoethane reacts with sodium in the presence of dry ether. The product is <br />Butane<br />Pentane<br />Butane<br />Propane<br />
  45. 45. Problem<br />43<br />BF3 is acid according to<br />Bronzed & Lowry<br />Arrhenius<br />Lewis <br />All of these<br />
  46. 46. Problem<br />44<br />A base dissolved in water yields a solution with a hydroxide ion concentration of 0-05 mol litre~ . The solution is<br />Neutral<br />Basic<br />Acid <br />Both (b) and (c)<br />
  47. 47. Problem<br />45<br />Azeotropic mixture of HC1 and H20 has<br />36% HC1 <br />48% HC1<br />20.2%HC1<br />22.2%HC1<br />
  48. 48. Problem<br />46<br />In which of the following case Kp is less than kc?<br />2SO2+O2=2SO3<br />PC15=PC13+C12<br />H2+C12=2HC1<br />All of these<br />
  49. 49. Problem<br />47<br />If concentration of reactants is increased by x then the K becomes<br />K+x<br />In K/x<br />K<br />K/x<br />
  50. 50. Problem<br />48<br />Which of the following is ferroelectric compound/<br />Pb2O3<br />BaTiO3<br />PbZrO3<br />K4[Fe(CN)6]<br />
  51. 51. Problem<br />49<br />Which of the following shows geometrical isomerism?<br />Propene<br />1-bithene<br />1, 1-dichlorobutane<br />2-butene<br />
  52. 52. Problem<br />50<br />Aromatic hydrocarbon shows mostly<br />substitution electrophilic reactions<br />addition electrophilic reactions<br />substitution nucleophilic reactions<br />addition nucleophilic reactions<br />
  53. 53. For solution visit www.vasista.net<br />

×