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Chemical Process

Chemical Process
Commercial production of calcium carbide requires limestone and __________ as raw materials.

Sand
Fuel oil
Soda ash
Coke

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Chemical Process
Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

Vinyl chloride
Dacron
Phthalic anhydride
Maleic anhydride

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Chemical Process
Lindane is

A by-product of BHC manufacture
BHC (Benzene Hexa Chloride) containing 99% γ-isomer
Not a fumigant
Both B and C

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Chemical Process
Parathion and Malathion are

Pain-relieving drugs (analgesic)
Plasticisers for unsaturated polysters
Pesticides
Tranquilisers

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Chemical Process
Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

Carbon
Sulphur
Lead
Arsenic

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Chemical Process
Gypsum is chemically

Calcium sulphate
Sodium sulphate
Potassium sulphate
Calcium chloride

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