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Chemical Process

Chemical Process
Salt is the basic raw material for the manufacture of

Caustic soda
Glass
Cement
Potteries

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Chemical Process
Rosin soap is added during paper manufacture to

Impart resistance to penetration by liquids
Improve opacity
None of these
Impart adhesive properties

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Chemical Process
H₂S is scrubbed from refinery gases by absorption using

Ethanol amine
Chilled water
Tri-butyl phosphate
Dilute H₂SO₄

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Chemical Process
Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?

Depithing
None of these
Bleaching
Digestion

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Chemical Process
Black liquor is converted into white liquor by

Extractive distillation
Multi-effect evaporation only
Evaporation and burning the concentrate followed by causticisation of products
Selective liquid extraction

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Chemical Process
Alcohol is produced by the

Esterification of a fat
Oxidation of an aldehyde
Hydrolysis of an ether
None of these

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