CHECC382 CPI

The major constituents of glass are

• silica, alumina and clay

• silica, alumina and soda ash

• lime, clay and soda ash

• sand, lime and soda ash

Main constituents of Portland cement are calcium aluminate and

• carbonates

• sodium silicate

• silicates

• gypsum

Fats as compared to oils have

• lower melting point

• much higher reactivity to oxygen

• less unsaturated glycerides of fatty acids

• more unsaturated glycerides of fatty acids

The main product of high temperature carbonization of coal is

• ammonia

• tar

• coke

• phenol

Esterification reaction process

• mercaptans

• soap

• detergent

• vanaspati

Chemical name of gridnard reagent is

• sodium bicarbonate

• sodium sulphite

• ethyl magnesium chloride

• sodium thiosulphate

Catalyst used in the hydrogenation of oil is

• alumina

• iron

• nickel

• platinum

Lime and soda ash are added to water to remove

• its corrosiveness

• bacteria

• undesirable taste and odour

• bicarbonates and sulphates of calcium and magnesium

Gypsum is chemically

• calcium sulphate

• calcium chloride

• potassium sulphate

• sodium sulphate

Which component of fertilizer is used in stimulates early growth purpose?

• Phosphorus

• Nitrogen

• Potassium

• Oxygen