Chemical Process MCQs

Question 1

Liquefaction of gases can not be done by

Accepted Answer

Merely compressing it beyond critical pressure

Answer

Exchange of heat with colder stream

Answer

Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

Answer

Adiabatic expansion against a piston or in a turbine

Question 2

Function of thinner in a paint is to

Accepted Answer

Suspend pigments & dissolve film forming materials

Answer

Accelerate the oxidation of oil

Answer

Prevent gelling of the paint

Answer

Form a protective film

Question 3

__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

Accepted Answer

Solvay

Answer

Ostwald's

Answer

Bosch

Answer

Haber's

Question 4

__________ acid is the main constituent of cotton seed oil.

Accepted Answer

Linoleic

Answer

Acetic

Answer

Palmitic

Answer

Oleic

Question 5

Which one of the following is not likely to be a constituent of vegetable oils?

Accepted Answer

Citric acid

Answer

Oleic acid

Answer

Stearic acid

Answer

Glycerol

Question 6

Main constituents of cotton fiber is

Accepted Answer

Cellulose

Answer

Lignin

Answer

Starch

Answer

Gelatine

Question 7

Major component of flint glass is

Accepted Answer

Lead oxide

Answer

Silica

Answer

Alumina

Answer

Soda

Question 8

Which of the following is the main constituent of the mother liquor produced in salt industry?

Accepted Answer

Bromine

Answer

Quick lime

Answer

Glauber's salt

Answer

Salt petre

Question 9

Process conditions in fermentator used for production of penicillin is

Accepted Answer

25°C, 2 atm

Answer

50°C, 10 atm

Answer

30°C, 200 mm Hg (absolute)

Answer

90°C, 45 atm