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Chemical Process

Chemical Process
Phosphoric acid is prepared from

Cryolite
Rock phosphate
None of these
Chalcopyrite

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Chemical Process
90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

44134
250-280
500-600

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Chemical Process
Tall oil obtained as a by-product from the black liquor recovery is

All of these
Composed mainly of rosin & fatty acids
A black, sticky & viscous liquid
Used in the manufacture of greases, emulsions & soaps

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Chemical Process
__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

Haber's
Ostwald's
Solvay
Bosch

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Chemical Process
Bio-degradable detergents

Pose problem in sewerage plant
Should not be used as it spoils the cloth
Can be readily oxidised
Have an isoparaffinic structure

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Chemical Process
The most widely used coagulant for removing suspended impurities from water is

Alum
Chlorine
Bleaching powder
Calcium sulphate

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