Chemical Process MCQs

Question 1

High temperature carbonisation of coal produces

Accepted Answer

None of these

Answer

Inferior coke compared to low temperature carbonisation

Answer

Less of gases compared to liquid products

Answer

Larger quantity of tar compared to low temperature carbonisation

Question 2

Carborundum consists mainly of

Accepted Answer

Silicon carbide

Answer

Bauxite

Answer

Boron carbide

Answer

Calcium carbide

Question 3

CaSO4 .$$\frac{1}{2}$$ H2O is known as

Accepted Answer

Plaster of Paris

Answer

Blue vitriol

Answer

Gypsum

Answer

Zeolite

Question 4

Saponification number of an oil or fat

Accepted Answer

All of the above

Answer

Gives an idea about its molecular weight

Answer

Is inversely proportional to its molecular weight

Answer

Detects its adulteration

Question 5

The difference between saponification value and acid value is

Accepted Answer

Called ester value

Answer

Always negative

Answer

Constant for all fatty oils

Answer

None of these

Question 6

Hydrogenation of oil takes place in a/an __________ reactor.

Accepted Answer

Trickle bed

Answer

Autothermal

Answer

Plug flow

Answer

None of these

Question 7

Celluloid is chemically

Accepted Answer

Cellulose nitrate

Answer

Cellulose acetate

Answer

Regenerated cellulose

Answer

Cellulose acetate butyrate

Question 8

Cement mainly contains

Accepted Answer

CaO, SiO2, Al2O3

Answer

MgO, SiO2, K2O

Answer

Al2O3, MgO, FE2O3

Answer

CaO, MgO, K2O

Question 9

Chemical formula of oleum is

Accepted Answer

H2S2O7

Answer

H2SO3

Answer

H2SO4

Answer

H2SO7