Chemical Engineering Answers

In a binary distillation, the separation of the components is easier if the relative volatility.(α) is

a)α >>1

b) α << 1 c)α=l

d) None of the above

2. In azeotropic distillation the third component is added

a) To form another azeotrope with one of the components b) To increase the relative volatility of the original two components

c) To decrease the relative volatility of the original two components

d) None of the above

1. The number of ideal stages required in a fractionation column is minimum at

a) Minimum reflux ratio

b) Total reflux ratio

c) Optimum reflux ratio d) Reflux ratio of zero

Match the products in Column-1 with the name of the process in Column-2.

Column-11

26. Ammonia

27. Soda ash (A)

28. Sulphuric acid (6)

29. Elemental sulfur

30. Sodium hydroxide

Column-2

a) Fischer- Tropes process

b) Contact

c) Haber's process

d) Solvay's process

e) Frash process

f) Mercury cell process

g) Clauss process

h) Steam reforming

Match the following from question numbers 21 to 30,

Each item of equipment mentioned in the column-1 is used for the manufacturing of products

mentioned in the column-2. Match the equipment with the products.

Column-1

(21) Fermentor

(22) Membrane cell

(23) Waste heat boiler

(24) Rotary Kiln

(25) Prilling tower

Column-2

a) Ammonium nitrate

b) Ethanol from molasses

c) Caustic soda

d) Ammonium phosphate.

e) Sulphuric acid

г) Cement

g) Yellow phosphorus

h) Sodium metal

Production of alcohol by fermentation of molasses is an

a) anaerobic process

c) acrobic process

b) endothermic process

d) None of these

The principal source of cellulose for making paper is

a) Wood

c) Grass

b) Corn stalk

d) None of these

Sucrose content in the cane sugar is may be around

a) 40%

c) 60%

b) 95%

d) 50%.