Practice Test: Question Set - 36
1. Which is the most efficient absorbent for SO3 out of the following?
- (A) 20% oleum
- (B) 65% oleum
- (C) 78% H2SO4
- (D) 98% H2SO4
2. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
- (A) Diamine and the ring
- (B) Dibasic acid and the
ring
- (C) Diamine and the
dibasic acid
- (D) None of these
3. Calcination of gypsum produces
- (A) Plaster of Paris
- (B) Salt cake
- (C) Nitre cake
- (D) Lime
4. Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at
- (A) 1 atm & 100°C
- (B) 5 atm & 275°C
- (C) 100 atm & 500°C
- (D) 50 atm & 1000°C
5. Styrene is produced from ethyl benzene by the process of
- (A) Dehydrogenation
- (B) Oxidation
- (C) Alkylation
- (D) Dehydration
6. The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
- (A) Electrolysis
- (B) Electrolytic
reduction
- (C) Electrolytic
oxidation
- (D) None of these
7. Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.
- (A) 80
- (B) 90
- (C) 98
- (D) 100
8. A 'unit process' is exemplified by the
- (A) Distillation
- (B) Hydrogenation of oils
- (C) Absorption
- (D) Humidification
9. Pick out the wrong statement.
- (A) Eosin requirement in
tallow soap is about 40-50% which fastens the lather formation, softens the
hard soaps and increases its cleansing action
- (B) Soap
powder is prepared by mixing soap with hydrated sodium carbonate
- (C) Detergents differ
from soaps in their action in hard water
- (D) Tarnish inhibitor
(e.g., Benzotriazole) is added in soap to facilitate the removal of stains due
to tea, blood etc.
10. Sodium carbonate (soda ash) is not used in the manufacture of
- (A) Fire
extinguishers
- (B) Sugar
- (C) Baking powder
- (D) Detergents
11. __________ is the major constituent of the Portland cement.
- (A) Calcium
carbonate
- (B) Calcium oxide
- (C) Tricalcium silicate
- (D) Calcium sulphate
12. Chemical name of 'alum' is
- (A) Barium sulphate
- (B) Aluminium sulphate
- (C) Aluminium chloride
- (D) Calcium sulphate
13. Polythene is a/an __________ polymerisation product.
- (A) Addition
- (B) Condensation
- (C) Thermosetting
- (D) None of these
14. The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at
- (A) SASOL (in South
Africa)
- (B) Redcar (U.K.)
- (C) Los Angeles (U.S.A.)
- (D) Trombay (India)
15. Aryl benzene sulphonate (ABS) is a
- (A) Detergent
- (B) Plasticizer for
unsaturated polyester
- (C) Starting material for
the synthesis of glycerine
- (D) Coating ingredient
for photographic film
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