Chemical Process MCQs

Question 1

Sulphur addition in soap is done to

Accepted Answer

Cure pimples & dandruff

Answer

Improve the soap texture

Answer

Fasten lather formation

Answer

Increase its cleansing action

Question 2

Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

Accepted Answer

Cl2

Answer

SO3

Answer

NH3

Answer

SO2

Question 3

Roasting of metallurgical ores is done mainly to

Accepted Answer

Remove arsenic & sulphur

Answer

Dehydrate it

Answer

Sinter the ore

Answer

Remove CO2 & H2O

Question 4

Lurgi coal gasifier is a pressurised __________ bed reactor.

Accepted Answer

Moving

Answer

Fixed

Answer

Fluidised

Answer

Entrained

Question 5

Manufacture of phthalic anhydride uses __________ as a catalyst.

Accepted Answer

V2O5

Answer

Ni

Answer

Cr

Answer

Al2O3

Question 6

Pure rectified spirit contains about __________ percent alcohol.

Accepted Answer

95

Answer

45

Answer

70

Answer

99.5

Question 7

Vanillin is a type of

Accepted Answer

Flavour

Answer

Anti-pyretic drug

Answer

Food preservative

Answer

Dye

Question 8

Varnish does not contain

Accepted Answer

Pigment

Answer

Thinner

Answer

Both A & B

Answer

Neither A nor B

Question 9

Varnish does not contain

Accepted Answer

Pigment

Answer

Thinner

Answer

Dryer

Answer

Anti-skimming agent