Chemical Process MCQs

Question 1

__________ paper is used in the manufacture of newsprint paper.

Accepted Answer

Groundwood

Answer

Board

Answer

Tissue

Answer

Wrapping

Question 2

Digestion of wood-base materials (for manufacture of pulp) is done to

Accepted Answer

Remove lignin

Answer

Produce long fibres

Answer

Prevent deterioration on storage

Answer

None of these

Question 3

Raw materials for 'Solvay Process' for manufacture of the soda ash are

Accepted Answer

Salt, limestone and coke or gas

Answer

Ammonia, salt and limestone

Answer

Ammonia limestone and coke

Answer

None of these

Question 4

Penicillin is separated from fermented broth by

Accepted Answer

Extraction with amyl or butyl acetate

Answer

Ternery azeotropic distillation

Answer

Evaporation in calendria

Answer

Extractive distillation

Question 5

Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and

Accepted Answer

Sulphuric acid

Answer

Phosphoric acid

Answer

Hydrochloric acid

Answer

Hydroflouric acid

Question 6

Calcareous & argillaceous materials are used in the manufacture of

Accepted Answer

Cement

Answer

Lead

Answer

Carbon disulphide

Answer

None of these

Question 7

Chemical name of aspirin (an analgesic drug) is

Accepted Answer

Acetylsalicylic acid

Answer

Nictonic acid

Answer

Calcium acetate

Answer

Methyl salicylate

Question 8

Fermentator temperature during production of alcohol from molasses is around __________ °C.

Accepted Answer

30

Answer

5

Answer

150

Answer

300

Question 9

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

Accepted Answer

4 kgf/cm2 & 500°C

Answer

10 kgf/cm2 & 1000°C

Answer

40 kg/cm2 & 200°C

Answer

100 kgi/cm2 & 500°C