Transcript of AMU - Chemistry - 1997
- 1. AMU PAST PAPERSCHEMISTRY- UNSOLVED PAPER - 1997
- 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. 01 Problem Which acts both as oxidizing as well as reducing
agent? a. HNO3 b. HNO2 c. HCI d. H2SO4
- 4. 02 Problem Which one the following compounds can form
hydrogen bond? a. CHCI3 b. NaCI c. H2O d. CH4
- 5. 03 Problem NH3 gas is dried over: a. P2O5 b. Anhydrous CaCI2
c. Conc. H2SO4 d. Quick lime
- 6. 04 Problem The normality of a 2.3 M sulphuric acid solution
is : a. 4.6 N b. 2.3 N c. 0.23 N d. 0.46 N
- 7. 05 Problem The oxide of lead used in lead accumulators is :
a. PbO2 b. Pb3O4 c. Pb2O3 d. PbO
- 8. 06 Problem Epsom salt is : a. MgSO4.7H2O b. MgSO4.H2O c.
BaSO4.2H2O d. CaSO4.H2O
- 9. 07 Problem Amongst the following hydroxide the one which has
the lowest value of KSP at ordinary temperature is: a. Be(OH)2 b.
Ba(OH)2 c. Ca(OH)2 d. Mg(OH)2
- 10. 08 Problem In the manufacture of caustic soda from brine,
one of the important by product is : a. Na2CO3 b. K2CO3 c. KOH d.
CI2
- 11. 09 Problem Which among the following is least stable and
decomposes more readily? a. LiCO3 b. Na2CO3 c. Cs2O3 d. K2CO3
- 12. 10 Problem The species that do not contain peroxide ions
are : a. H2SO2 b. BaO2 c. PbO2 d. SrO2
- 13. 11 Problem When zeolite which is hydrated sodium aluminium
silicate, is treated with hard water. The Na+ ions are exchanged
with ? a. Ca2+ ions b. Mg2+ ions c. Both Ca2+ and Mg2+ ions d. H+
ions
- 14. 12 Problem The property of pulling of electrons by an
elements in a bond is called: a. Electro negativity b.
Electrometric effect c. Inductive effect d. None these
- 15. 13 Problem Which of the following order of ionization
energy is correct? a. BB>C>N>O c. B
- 16. 14 Problem The element with highest ionization potential
is: a. Nitrogen b. Oxygen c. Boron d. Carbon
- 17. 15 Problem How many number of molecules are present in 3.6
gm of water? a. 1.2x1023 b. 6x1023 c. 6x1022 d. 6x1024
- 18. 16 Problem When ore limes stone in heated carbon dioxide s
given off this operation in metallurgy is known as? a. Calcinations
b. Roasting c. Ore-dressing d. Smelting
- 19. 17 Problem Which will show highest lattice energy? a. KF b.
NaF c. CaF d. PbF
- 20. 18 Problem PVC is a polymer of : a. CH 2 = CHCL b. Cl-C =
C-Cl c. ClCH2 CHCl d. CH2 = CH2
- 21. 19 Problem Ethylamine reacts with HNO2 giving a. C2H5OH b.
C2H5NO2 c. NH3 d. C2H6
- 22. 20 Problem Which of the following will give a primary amine
of hydrolysis? a. Nitroparaffin b. Alkyl isocyanide c. Alkyl
cyanide d. Oxide
- 23. 21 Problem Benzene reacts with CH3COCI to give : a. Benzyl
chloride b. Acetophenone c. Chlorobenzene d. Toluene
- 24. 22 Problem Which of the following has the maximum acidic
strength ? a. p- nitrophenol b. p- nitrobenzoic acid c. o-
nitrobenzoic acid d. m- nitrobenzoic
- 25. 23 Problem CH3CH = CHCHO is oxidized to CH2CH = CHCOOH
using : a. Selenium dioxide b. Ammoniac AgNO3 c. Alkaline KMnO4 d.
All of these
- 26. 24 Problem The reagent with which both acctaldehyde and
acetone react easily is : a. Tollers reagent b. Schiffs reagent c.
Grignard reagent d. Fehling solution
- 27. 25 Problem An example of a covalent crystalline solid is :
a. Si b. Al c. NaF d. Ar
- 28. 26 Problem Red lead is : a. Pb3O4 b. Pb2O3 c. Pb2O d.
PbO
- 29. 27 Problem Which of the following reacts with water with
high rate? a. Cs b. Ba c. K d. Li
- 30. 28 Problem Which of the following oxide is a true acidic
anhydride? a. N2O5 b. NO c. CO d. CLO2
- 31. 29 Problem Which of the following is diamagnetic ion? a.
Co2+ b. Cr3+ c. V3+ d. Ti4+
- 32. 30 Problem 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 earths atmosphere there is a layer of: a.
H2 b. NH3 c. O2 d. CO2
- 33. 31 Problem Acidified solution of K2Cr2O7 on treatment with
H2O2 gives: a. H2Cr2O7+H2O+O2 b. CrO+H2O c. Cr2O3+H2O+O2 d.
Cr3O3+H2O+O2
- 34. 32 Problem Which of the following elements extracted
commercially by the electrolysis of an aqueous solution of one of
its compound? a. CI2 b. Br2 c. I2 d. Na
- 35. 33 Problem Chlorine reacts with NaOH under various
conditions to give: a. NaCIO3 b. NaCIO c. NaCI d. All of these
- 36. 34 Problem The noble gas forming the maximum number of
compound is: a. He b. Xe c. Ar d. Ne
- 37. 35 Problem Hard steel contains: a. 0.6-1.5% carbon b.
0.5-0.2% carbon c. 5% carbon d. No carbon
- 38. 36 Problem Smelting is carried out in: a. Electric furnace
b. Blast furnace c. Open hearth furnace d. Mule furnace
- 39. 37 Problem Nobel gas used in radiotherapy is : a. Ar b. Kr
c. Xe d. Rn
- 40. 38 Problem Which one of the following turns potassium
dichromatic paper green? a. NO2 b. HCI c. NH3 d. SO2
- 41. 39 Problem When an aqueous solution containing sodium
acetate and sodium propionate is electrolyzed we get: a. Butane b.
Propane c. Ethane d. All of these
- 42. 40 Problem The number of isomers of C6H14 are a. 7 b. 6 c.
5 d. 4
- 43. 41 Problem The gas evolved when Pb(NO3)2 is heated is : a.
N2O5 b. N2O c. NO2 d. NO
- 44. 42 Problem Ozonolysis of fatty acids is a technique used
for determining: a. Number of oh group b. Number of cooh group c.
Position of double bond d. Position of carbonyl group
- 45. 43 Problem An organic compound containing C, H and N gave
the following analysis C=40%, H=13,33%, N=46.67%. What would be its
empirical formula: a. C2H7N2 b. C2H7N c. CH5N d. CH4N
- 46. 44 Problem Number of enantiomers of the compound
CH3CHBrCHBrCOOH is: a. 4 b. 3 c. 1 d. 0
- 47. 45 Problem Iodiform is formed in warming I2 and NaOH with:
a. CH3COOH b. C2H5OH c. CH3OH d. HCOOH
- 48. 46 Problem Which of the following groups has highest
inductive effect? a. (CH3)3C- b. (CH3)2CH- c. CH3CH2- d. CH3-
- 49. 47 Problem The order of stability of carbonions is: a.
20>3010>CH3 b. 30>10 >20>CH3 c. 30>2010>CH3 d.
CH3 10>20>30
- 50. 48 Problem Isopreric substances are used for making : a.
Liquid fuel b. Petrol c. Rubber d. Propane
- 51. 49 Problem Vitamin A is present in: a. Green vegetables b.
Liver c. Milk d. All of these
- 52. 50 Problem Which of example of SN2 reaction? a. b. c.
d.
- 53. FOR SOLUTIONS VISIT WWW.VASISTA.NET