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CHEMICAL PROCESS

Chemical Process
Digestion of wood-base materials (for manufacture of pulp) is done to

Prevent deterioration on storage
Produce long fibres
None of these
Remove lignin

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Chemical Process
Raw materials for 'Solvay Process' for manufacture of the soda ash are

Ammonia, salt and limestone
Salt, limestone and coke or gas
Ammonia limestone and coke
None of these

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Chemical Process
Penicillin is separated from fermented broth by

Extraction with amyl or butyl acetate
Extractive distillation
Ternery azeotropic distillation
Evaporation in calendria

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Chemical Process
Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and

Sulphuric acid
Hydroflouric acid
Phosphoric acid
Hydrochloric acid

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Chemical Process
Calcareous & argillaceous materials are used in the manufacture of

None of these
Carbon disulphide
Cement
Lead

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