Chemical Process MCQs

Question 1

Main use of liquid nitrogen is in

Accepted Answer

Refrigerative cooling

Answer

Rocket propulsion

Answer

Making gun powder

Answer

Detergent manufacture

Question 2

Pick out the wrong statement.

Accepted Answer

None of these

Answer

Dry process is used for the manufacture of cement, when the raw material is blast furnace slag

Answer

Portland cement is made employing wet process

Answer

Gypsum is added to portland cement to lengthen its setting time

Question 3

Na2CO3 is called

Accepted Answer

Soda ash

Answer

Washing soda

Answer

Plaster of paris

Answer

Calcite

Question 4

Na2CO3.10H2O is called

Accepted Answer

Washing soda

Answer

Soda ash

Answer

Slaked lime

Answer

Quicklime

Question 5

Naphthols are derivates of

Accepted Answer

Naphthalene

Answer

Methyl amine

Answer

Phenol

Answer

Xylene

Question 6

Which of the following has sodium bicarbonate as its main constituent ?

Accepted Answer

Baking powder

Answer

Baking soda

Answer

Washing soda

Answer

None of these

Question 7

Dehydrogenation of isopropanol produces

Accepted Answer

Acetone

Answer

Propyl alcohol

Answer

Trichloroethylene

Answer

Formaldehyde

Question 8

Which of the following is the second major component of cement?

Accepted Answer

SiO2

Answer

Al2O3

Answer

CaO

Answer

Fe2O3

Question 9

The manufacture of Kraft pulp is done by a/an __________ process.

Accepted Answer

Alkaline

Answer

Acidic

Answer

Neutral

Answer

None of these