CHEMICAL PROCESS QUIZ

In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

Gives higher conversion efficiency

Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant

Has a longer life and is not poisoned by arsenic

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Fusion of limestone and __________ produces high alumina cement.

Calcite

Sand

Quicklime

Bauxite

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick out the false statement pertaining to water treatment.

Water with pH value less than 7, is acidic

Aeration of water is effective in CO₂ removal

The zeolite water softening process reduces the hardness of water by not more than 50%

Sodium sulphate or sodium carbonate do not cause hardness in water

TRUE ANSWER : ?
YOUR ANSWER : ?

Ore concentration by froth floatation utilises the __________ of ore particles.

None of these

Wetting characteristics

Density difference

Terminal velocities

TRUE ANSWER : ?
YOUR ANSWER : ?

Manufacture of phthalic anhydride uses __________ as a catalyst.

V₂O₅

Ni

Al₂O₃

Cr

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is not a constituent of gun powder.

Potassium nitrate

Sulphur

Charcoal

Carbon

TRUE ANSWER : ?
YOUR ANSWER : ?

The process used for the manufacture of ethyl alcohol from molasses is

Dehydrogenation

None of these

Distillation

Dehydration

TRUE ANSWER : ?
YOUR ANSWER : ?

Enamels

Are prepared from non-drying oil

Do not contain pigment

Are same as varnish

Give good glossy finish

TRUE ANSWER : ?
YOUR ANSWER : ?

Oils and fats are converted to soap in a process called

Hydrogenation

None of these

Saponification

Esterification

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an insecticide?

Nicotine

Hydrocyanic acid

Sodium flouride

Hexane

TRUE ANSWER : ?
YOUR ANSWER : ?