Chemical Kinetics Process Computer Based Test - Set 39 - ObjectiveBooks
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Chemical Kinetics Process Computer Based Test - Set 39

Practice Test: Question Set - 39


1. The purpose of adding Na2CO3 to water of low alkalinity is to
    (A) Permit the use of alum as a coagulant
    (B) Increase the softening capacity of zeolite
    (C) Facilitate easy regeneration of zeolite
    (D) All (a), (b) and (c)

2. Margarine is a/an
    (A) Fat
    (B) Explosive
    (C) Plasticizer
    (D) Rocket propellant

3. Main constituents of Portland cement are calcium aluminate and
    (A) Gypsum
    (B) Silicates
    (C) Sodium silicate
    (D) Carbonates

4. Cumene is the starting material for the production of
    (A) Benzoic acid
    (B) Phenol and acetone
    (C) Isoprene
    (D) Styrene

5. Glauber's salt is chemically represented by
    (A) Na2SO4.10H2O
    (B) CaCl(OCl)
    (C) CaSO4.H2O
    (D) (NH4)2SO4

6. Liquefaction of gases cannot be done by
    (A) Exchange of heat with colder stream
    (B) Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
    (C) Merely compressing it beyond critical pressure
    (D) Adiabatic expansion against a piston or in a turbine

7. Which of the following is used as a binding material in soap to improve soap texture?
    (A) Rosin
    (B) Borax
    (C) Benzyl acetate
    (D) Sodium carbonate

8. Alcohol percentage in molasses may be around
    (A) 10
    (B) 40
    (C) 70
    (D) 85

9. Heating of __________ to 120°C, produces plaster of paris.
    (A) Blue vitriol
    (B) Gypsum
    (C) Calcium silicate
    (D) Calcium sulphate

10. Adipic acid is an intermediate in the manufacture of
    (A) Perspex
    (B) Nylon-66
    (C) Polystyrene
    (D) Bakelite

11. During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as
    (A) It is very corrosive at elevated temperature
    (B) Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)
    (C) It decomposes on further increasing the temperature
    (D) None of these

12. Average sulphur content in Indian pyrites is about __________ percent.
    (A) 15
    (B) 35
    (C) 55
    (D) 70

13. In industrial nomenclature, alcohol means
    (A) Butyl alcohol
    (B) Propyl alcohol
    (C) Ethanol
    (D) Methyl alcohol

14. The process used for the manufacture of ethyl alcohol from molasses is
    (A) Distillation
    (B) Dehydration
    (C) Dehydrogenation
    (D) None of these

15. Gun powder uses
    (A) Sulphur
    (B) Charcoal
    (C) Potassium nitrate
    (D) All (a), (b), & (c)

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