AMU - Chemistry - 1998


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AMU - Chemistry - 1998

  2. 2. SECTION – I Single Correct Answer Type  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
  3. 3. 01 Problem Sodalime is a. NaH + Na2CO3 b. NaOH + CaO c. NaOH + NaHCO3 d. Na2CO3 + CaO
  4. 4. 02 Problem White lead is : a. Carbonate of lead b. Oxide of lead c. Basic carbonate of lead d. Basic sulphate of lead
  5. 5. 03 Problem AlCl3 fumes in moist air because : a. HCl is formed in moist air b. It is highly hygroscopic c. It is very volatile d. It is covalent
  6. 6. 04 Problem Calcium is obtained by : a. Reduction of CaCl2 with carbon b. Roasting of limestone c. Electrolysis of molten CaCl2 d. Electrolysis of solution of CaCl2 in water
  7. 7. 05 Problem Brown ring test is for : a. Nitrate b. Sulphate c. Halide d. Sophie
  8. 8. 06 Problem Sodium thiosulphate is used in photography because of its : a. Complex forming behavior b. Reducing behaviour c. Reaction with light d. Oxidizing behaviour
  9. 9. 07 Problem A characteristic feature of transition elements is ; a. They do not from complex ions b. They show variable oxidation states c. They show inert pair effect d. They all exhibit diamagnetism
  10. 10. 08 Problem H2O2 reduces K2Fe(CN)6 in : a. Alkaline medium b. Neutral solution c. Non-polar medium d. Acidic solution
  11. 11. 09 Problem H2O2 oxidises H2S to : a. H2S2O8 b. H2SO5 c. H2SO4 d. S
  12. 12. 10 Problem Atomic radii of fluorine and neon in angstron units are respectively given by : a. 0.72, 0.82 b. 0.72, 1.60 c. 0.72, 0.72 d. 1.60, 1.60
  13. 13. 11 Problem Which of the following elements exhibits variable oxidation states ? a. Zn b. Fe c. Al d. Si
  14. 14. 12 Problem Most electropositive halogen is : a. Cl b. Br c. I d. F
  15. 15. 13 Problem Most of the man made elements occur : a. Among the non-metals b. Among the metalloids c. In the actinides series d. In the lanthanides series
  16. 16. 14 Problem The most abundant meatl on the surface of earth is : a. Al b. Hg c. Fe d. Ca
  17. 17. 15 Problem Cupellation process is used in the metallurgy of : a. Ag b. Cu c. Fe d. Al
  18. 18. 16 Problem Off the following the metal the cannot be obtained by electrolysis of the aqueous solution of their salt is : a. Al b. Mg c. Cu d. Both a and b
  19. 19. 17 Problem Polymer of chloroethylene is : a. Teflon b. Nylon c. Terylene d. PVC
  20. 20. 18 Problem Primary amines react with benzaldehyde to form : a. Diazonium salts b. Azodyes c. Anilides d. Schiff’s base
  21. 21. 19 Problem Which of the following is a strong reducing agent ? a. Methanoic acid b. Ethanoic acid c. Chloroacetic acid d. Benzoic acid
  22. 22. 20 Problem When ethylene bromide is treated with Zn, we get : a. Alkane b. Alkene c. Alkyne d. None of these
  23. 23. 21 Problem Formaldehyde reacts with NH3 to form : a. (CH2)6N6 b. (CH2)6N4 c. (CH2)6N5 d. (CH2)4N6
  24. 24. 22 Problem Acetone is easily oxidized with : a. Benedict’s solution b. Fehling solution c. Acidic dichromate solution d. Tollen’s reagent
  25. 25. 23 Problem Which of the following is soluble in water ? a. C2H5OH b. CHCl3 c. Cs2 d. CCl4
  26. 26. 24 Problem Baeyer’s reagent is used in the laboratory for? a. Detection of double bond b. Detection of glucose c. Reduction process d. Oxidation process
  27. 27. 25 Problem SIDROSIS diseases is caused by excess intake element’s which is : a. Mobudium b. Copper c. Zinc d. Iron
  28. 28. 26 Problem Graphite is soft because : a. It is back b. It has low density c. It has layer structure d. It has three dimensional structure
  29. 29. 27 Problem Mrash gas is : a. Methane b. Ethane c. Ethylene d. Acethylene
  30. 30. 28 Problem The reaction, C8H18 C5H12 + C4H10 + C8H16 + represents : a. Catalytic oxidation b. Isomerisation c. Cracking d. Synthesis
  31. 31. 29 Problem Polythene is a polymer of : a. C4H10 b. C3H6 c. C2H4 d. C2H2
  32. 32. 30 Problem The vitamins present in oils and fats are : a. A and C b. B and C c. A and B d. A and C
  33. 33. 31 Problem PVC is : a. Thermoplastic polymer b. Compound polymer c. Thermosetting polymer d. Simple polymer
  34. 34. 32 Problem Which element is known as ‘GIRLS BEST FRIEND’ ? a. Plutonium b. Diamind c. Silver d. Gold
  35. 35. 33 Problem Group belong to : a. Aldehyde b. Alcohol c. Ketone d. Acid
  36. 36. 34 Problem The acid is used as VINEGAR for preparation of pickles : a. Oxalic acid b. Citraic acid c. Acetic acid d. Formic acid
  37. 37. 35 Problem Polmific acid and steric acid are used as : a. Medicine b. Soap c. Anticeptic cream d. Pickle
  38. 38. 36 Problem The hardest substance among the following is : a. Graphite b. Anthracite c. Lignite d. Peat
  39. 39. 37 Problem Drip-day clothes are made up of : a. Polyster b. Decrone c. Rayon d. Nylon
  40. 40. 38 Problem The carbon contents in lamp black is about : a. 98-99% b. 90-955 c. 80-90% d. 10-20%
  41. 41. 39 Problem Neoprene is a polymer of : a. 1-bromobutadiene b. 2-chlorobutadiene c. 2-bromobutadiene d. 1-chlorobutadiene
  42. 42. 40 Problem Rayon is : a. Synthetic plastic b. Natural rubber c. Natural silk d. Artificial silk
  43. 43. 41 Problem The natural cleaning agent are found in river : a. Marine animal b. Plants c. Algae d. Fungi
  44. 44. 42 Problem Which of the following is used as a preservative for biological specimens ? a. Acetic acid b. Formic acid c. Formalin d. Liquid NH3
  45. 45. 43 Problem Name the compounds which affects the ozone layer : a. Chloro compound b. Fluro compound c. Bromo compound d. Iodo compounds
  46. 46. 44 Problem Nitrogen is an essential constituent of all : a. Proteins and fats b. Fats c. Proteins d. None of these
  47. 47. 45 Problem Which is the pH value corresponding to iso-electric point of an aqueous solution of glycine : a. pH = 6 b. pH = 0 c. pH = 7 d. pH > 7
  48. 48. 46 Problem The main agent for polluting the environment is : a. Gas b. Plant c. Animal d. Man
  49. 49. 47 Problem Inosphere is : a. Above ozone layer b. Below ozone layer c. Bleow 15 kg in earth crust d. None of these
  50. 50. 48 Problem Molar heat capacity is given by : dQ a. dT b. dQ x Dt 1 c. dT 1 d. Q T
  51. 51. 49 Problem The distance between nucleons in atomic nucleus is of the order of (1 F = 10-13 cm) : a. 1000 Fermi b. 200 Fermi c. 50 Fermi d. 2 Fermi
  52. 52. 50 Problem Nuclear reactions are balanced in terms of : a. Only mass b. Only energy c. Number of electrons d. Mass and energy