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Chemical Process

Chemical Process
Litharge is

Zinc oxide
Lead oxide
Cellulosic photographic material
Zinc sulphide

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Chemical Process
The amount of benzene present in pure benzol is about __________ percent.

50
90
30
70

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Chemical Process
Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

Both B and C
Irreversible
Endothermic
Exothermic

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Chemical Process
Viscose rayon is

Cellulose nitrate
Regenerated cellulose acetate
Regenerated cellulose nitrate
None of these

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Chemical Process
Systemic insecticides

Emit poisonous vapour
Kill insects following external bodily contact
Are stomach poisons
Are absorbed throughout the plant

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Chemical Process
Carboxymethyl cellulose (CMC) is added in detergents to

Prevent redeposition of soil on cleaned surface
None of these
Inhibit corrosion in washing machines made of aluminium
Act as optical brightening agent

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