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Chemical Process

Chemical Process
Sulphur removal by heating of pyrite ore in presence of air is called its

Reduction
Roasting
Calcination
Smelting

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Chemical Process
Chemical formula of BHC, which is an insecticide is

C₆H₅Cl
C₆H₄Cl₂
C₆Cl₆
C₆H₆Cl₆

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Chemical Process
Oil produced by solvent extraction

Has low free fatty acid content
Neither A nor B
Is odourless
Both A & B

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Chemical Process
Nitrile rubber is produced by the polymerisation of

None of these
Isobutylene and isoprene
Acrylonitrile and butadiene
Acrylonitrile and styrene

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Chemical Process
Prussian blue is chemically represented by

Ca SO₄ . 2H₂O
Fe₄ [Fe (CN₆)₃]
AlF₃ . 3NaF
FeO.TiO₂

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Chemical Process
Paper pulp produced by kraft/sulphate process is

Dark colored
Bleached easily
Strong fibrous
Dull white in color

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