Chemical Process MCQs

Question 1

Solvay process as compared to dual process (i.e. modified Solvay process)

Accepted Answer

Both B and C

Answer

Can use low grade brine

Answer

Has less corrosion problems

Answer

Involves higher investment in NH 3 recovery units than that for crystallisation units for NH 4 Cl

Question 2

CO & H 2 are the constituents of

Accepted Answer

All of the above

Answer

Producer gas

Answer

Water gas

Answer

Coke oven gas

Question 3

Main product in calcium carbide-water reaction is

Accepted Answer

C 2 H 2

Answer

Ca(OH) 2

Answer

CO 2

Answer

CaCO 3

Question 4

Pick out the exothermic reaction out of the following:

Accepted Answer

CaC 2 + H 2 O = Ca(OH) 2 + C 2 H 2

Answer

C + H 2 O = CO + H 2

Answer

MgCO 3 = MgO + CO 2

Answer

All of the above

Question 5

H 2 S is scrubbed from refinery gases by absorption using

Accepted Answer

Ethanol amine

Answer

Dilute H 2 SO 4

Answer

Chilled water

Answer

Tri-butyl phosphate

Question 6

Fat splitting catalyst is

Accepted Answer

ZnO

Answer

CaCO 3

Answer

Al 2 O 3

Answer

Fe

Question 7

Cation exchanger is regenerated usually with

Accepted Answer

H 2 SO 4

Answer

NaOH

Answer

Hydrazine

Answer

Alum solution

Question 8

Chemical formula of 'salt cake' is

Accepted Answer

Na 2 SO 4

Answer

CaSO 4

Answer

MgSO 4

Answer

BaSO 4

Question 9

The end bleaching agent used to move last traces of colour bodies from the pulp is

Accepted Answer

Chlorine dioxide (ClO 2 )

Answer

MgO

Answer

SO 2 gas

Answer

Mercaptans