Chemical Process and Production Multiple Choice Questions - Set 20 - ObjectiveBooks

Chemical Process and Production Multiple Choice Questions - Set 20

Practice Test: Question Set - 20

1. Varnish does not contain
    (A) Pigment
    (B) Thinner
    (C) Dryer
    (D) Anti-skimming agent

2. Builders are added in soap to act as
    (A) Cleaning power booster
    (B) Anti-redeposition agent
    (C) Corrosion inhibitor
    (D) Fabric brightener

3. Which of the following coals has the highest calorific value?
    (A) Lignite
    (B) Sub-bituminous
    (C) Anthracite
    (D) Peat

4. Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?
    (A) High cost of mercury
    (B) High specific gravity of mercury
    (C) Non-availability of high purity mercury
    (D) Pollution of water stream by mercury

5. Molecular weights of polymers are in the range of
    (A) 102 - 102
    (B) 105 - 109
    (C) 102 - 107
    (D) 109 - 1011

6. Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?
    (A) Slag cement
    (B) Glasses
    (C) Porcelain/Potteries
    (D) Teflon

7. Finely ground calcium aluminate & silicate is a/an
    (A) Cermet
    (B) Cement
    (C) Abrasive
    (D) Explosive

8. Phosphate rock is a raw material for the manufacture of
    (A) Phosphoric acid
    (B) Phosphorous
    (C) Superphosphates
    (D) All (a), (b) and (c)

9. Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of
    (A) Nitric acid
    (B) Hydrochloric acid
    (C) Methyl alcohol
    (D) Formic acid

10. Which of the following is the second major component of cement?
    (A) Al2O3
    (B) SiO2
    (C) CaO
    (D) Fe2O3

11. The main component of Pyrex glass is
    (A) Zinc
    (B) Lead
    (C) Boron
    (D) Selenium

12. Pick out the endothermic reaction out of the following.
    (A) C+ ½O2 = CO
    (B) CO + 3H2 = CH4 + H2O
    (C) CaCO3 = CaO + CO2
    (D) CO + ½O2 = CO2

13. Phosphoric acid is prepared from
    (A) Cryolite
    (B) Chalcopyrite
    (C) Rock phosphate
    (D) None of these

14. The terminology 'BTX' used in coal tar distillation industry refers to
    (A) Benzol-toluol-xylol
    (B) Benzol-toluene-xylene
    (C) Benzene-toluol-xylol
    (D) Benzene-toluene-xylene

15. Graphite is a/an
    (A) Electrical insulator
    (B) Allotrope of carbon
    (C) Moderator used in nuclear reactor
    (D) Both (b) and (c)

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