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AFMC Chemistry 2004


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AFMC Chemistry 2004

  1. 1. AFMC–Past papers<br />CHEMISTRY - UNSOLVED PAPER - 2004<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 />Monds process is used for<br />Ni <br />A1<br />Fe <br />Cu<br />
  4. 4. Problem<br />02<br />Which of the following yield both alkane and alkene?<br />Kolbe's reaction <br />Williamson's synthesis<br />Wurtz reaction <br />Sandmeyer reaction<br />
  5. 5. Problem<br />03<br />Bessemer converter is used for<br />steel <br />wrought iron<br />pig iron <br />cast iron<br />
  6. 6. Problem<br />04<br />Lanthanides and actinides resemble in<br />electronic configuration<br />oxidation state <br />ionization energy<br />formation of complexes<br />
  7. 7. Problem<br />05<br />Mg and Li are similar in their properties due to<br />same elm ratio <br />same electron affinity<br />same group <br />same ionic potential<br />
  8. 8. Problem<br />06<br />How will you separate mixture of two gases?<br />fractional distillation technique<br />Grahams law of diffusion technique<br />osmosis <br />chromatography<br />
  9. 9. Problem<br />07<br />Which of these have no unit?<br />electronegativity<br />electron affinity<br />ionisation energy <br />excitation potential<br />
  10. 10. Problem<br />08<br />The addition of unsymmetrica! reagents to unsymmetrical alkenes occurs in such a way that the negative part of the addendum goes to that carbon atom of the double bond which carries lesser number of hydrogen atoms" is called by<br />Saytzeff rule <br />Markownikoff's rule<br />Kharasch effect <br />Anti-Saytzeff rule<br />
  11. 11. Problem<br />09<br />The molecule of CO2 has angle 180°. It can be explained on the basis of<br />sp3hybridisation<br />sp2hybridisation<br />sp hybridisation<br />d2Sp3hybridisation<br />
  12. 12. Problem<br />10<br />Fusion bomb involves<br />combination of lighter nuclei into bigger nucleus<br />destruction of heavy nucleus into smaller nuclei<br />combustion of oxygen<br />explosion of TNT.<br />
  13. 13. Problem<br />11<br />Which of the following gas mixture is used by the divers inside the sea?<br />O2 + He <br />O2 + Xe<br />O2 + Ar<br />O2 + N2<br />
  14. 14. Problem<br />12<br />Photoelectric effect is maximum in<br />Cs <br />Na<br />K <br />Li<br />
  15. 15. Problem<br />13<br />Which of the following cuts ultraviolet rays?<br />soda glass <br />Crooke's glass<br />pyrax<br />None of these<br />
  16. 16. Problem<br />14<br />Naphthalene is a/an<br />ionic solid <br />covalent solid<br />metallic solid <br />molecular solid<br />
  17. 17. Problem<br />15<br />Acetone is mixed with bleaching powder to give<br />chloroform <br />acetaldehyde<br />ethanol <br />phosgene<br />
  18. 18. Problem<br />16<br />4.4 g of CO2 contains how many litres of CO2 at STP?<br />2.4 litre<br />2.24 litre<br />44 litre<br />22.4 litre<br />
  19. 19. Problem<br />17<br />Aniline reacts with which of these to form Schiff base?<br />acetic acid <br />benzaldehyde<br />acetone <br />NH3<br />
  20. 20. Problem<br />18<br />Which of these do not contain - COOH group?<br />aspirin <br />benzoic acid<br />picric acid <br />salicylic acid<br />
  21. 21. Problem<br />19<br />EDTA has coordination number<br />3 <br />4<br />5 <br />6<br />
  22. 22. Problem<br />20<br />Write the IUPAC name of CH3CH2COOH.<br />ethyl formic acid<br />ethyl carboxylic acid<br />ethane methanoic acid<br />propanoic acid<br />
  23. 23. Problem<br />21<br />Octane number can be changed by<br />isomerisation<br />alkylation<br />cyclisation<br />all of these<br />
  24. 24. Problem<br />22<br />Gasoline has composition<br />C8 – C12<br />C2 - C5<br />C6 – C11<br />None of these<br />
  25. 25. Problem<br />23<br />Oxygen molecule is<br />diamagnetic <br />paramagnetic<br />ferromagnetic <br />ferrimagnetic<br />
  26. 26. Problem<br />24<br />∆G = ∆H -T∆S was given by<br />Faraday <br />Kirchoff<br />Einstein<br />Gibbs-Helmholtz<br />
  27. 27. Problem<br />25<br />Acetone reacts with Grignard reagent to form<br />3° alcohol<br />2° alcohol<br />ether <br />No reaction<br />
  28. 28. Problem<br />26<br />Wood spirit is known as<br />methanol<br />ethanol<br />acetone<br />benzene<br />
  29. 29. Problem<br />27<br />Proton was discovered by<br />Chadwick<br />Thomson<br />Goldstein<br />Bohr<br />
  30. 30. Problem<br />28<br />Which of the following is a basic dye?<br />congo red <br />aniline yellow<br />alizarin <br />indigo<br />
  31. 31. Problem<br />29<br />Colemnite is<br />Ca[B3O4(OH)2]2H2O<br />Ca2B6O11-5H2O <br />Ca(OH)2<br />Na2B4O7.2H2O<br />
  32. 32. Problem<br />30<br />Which of the following can't be used in Friedal- Craft's reactions?<br />FeCl3<br />FeBr2<br />A1C13<br />NaCl<br />
  33. 33. Problem<br />31<br />Lapis lazuli is<br />ferrous sulphate<br />copper sulphate<br />sodium alumino silicate<br />zinc sulphate<br />
  34. 34. Problem<br />32<br />"Relative lowering in vapour pressure of solution containing non-volatile solute is directly proportional<br />to mole fraction of solute". Above statement is<br />Henry law <br />Dulong and Petit law<br />Raoult's law <br />Le-Chatelier's principle<br />
  35. 35. Problem<br />33<br />Bohr's theory was modified to give the concept of elliptical orbits by<br />Davison<br />Rutherford<br />Hund<br />Sommerfeld<br />
  36. 36. Problem<br />34<br />Which of the following metal has stable carbonates?<br />Na <br />Mg<br />A1<br />Si<br />
  37. 37. Problem<br />35<br />What is the net charge on ferrous ion?<br />+2<br />+3<br />+4<br />+5.<br />
  38. 38. Problem<br />36<br />Oxidation number of carbon in CH2C12 is<br />0<br />2<br />3<br />5<br />
  39. 39. Problem<br />37<br />Internal energy is<br />partly potential and partly kinetic<br />totally kinetic <br />totally potential<br />none of these<br />
  40. 40. Problem<br />38<br />Breeding arc method cannot be used to prepare colloidal solution of which of the following?<br />Pt <br />Fe<br />Ag<br />Au<br />
  41. 41. Problem<br />39<br />Which of the following oxides of nitrogen is solid?<br />NO2<br />N2O<br />N2O3<br />N2O5<br />
  42. 42. Problem<br />40<br />Containers A and B have same gases. Pressure, volume and temperature of A are all twice that of B, then the ratio of number of molecules of A and B are<br />1 : 2 <br />2<br />1 : 4<br />4 <br />
  43. 43. Problem<br />41<br />The ratio of area covered by second orbital to the first orbital is<br />1 : 2<br />1 : 16<br />8 : 1<br />16 : 1.<br />
  44. 44. Problem<br />42<br />Among them intensive property is<br />mass <br />volume<br />surface tension <br />enthalpy<br />
  45. 45. Problem<br />43<br />Stainless steel is an alloy of iron and<br />copper <br />nickel and chromium<br />manganese <br />zinc<br />
  46. 46. Problem<br />44<br />Orion has a unit<br />vinyl cyanide<br />caroling<br />glycol<br />two dimensional<br />
  47. 47. Problem<br />45<br />Structure of H2O2 is<br />planar<br />non-planar (three dimensional')<br />linear <br />two dimensional<br />
  48. 48. Problem<br />46<br />Triple point of water is<br />273 K <br />373 K<br />203 K<br />193 K<br />
  49. 49. Problem<br />47<br />What is the % of acetic acid present in vinegar?<br />6 - 10% <br />70 - 80%<br />7 - 8% <br />90 - 100%<br />
  50. 50. Problem<br />48<br />Nitrous oxide is known as<br />breathing gas <br />laughing gas<br />exercising gas <br />laboratory gas<br />
  51. 51. Problem<br />49<br />The element used for dating the ancient remains is<br />Ni <br />C-14<br />C-12<br />Rd<br />
  52. 52. Problem<br />50<br />Percentage of silver in German silver is<br />0% <br />1%<br />5% <br />none of these<br />
  53. 53. For solution visit<br />