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Chemical Process

Chemical Process
__________ is used as a flux in the smelting of copper ore like chalcopyrite.

Lime powder
Silica/quartz
Coke breeze
Dolomite

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Chemical Process
Phthalic anhydride is used

In making PVC
In insecticides manufacture
For making nylon-6
As plasticisers

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Chemical Process
Fumigant insecticides

Are absorbed throughout the plant
None of these
Kill insects, when they eat it
Emit poisonous vapour

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Chemical Process
Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces

Dacron
PVC
Nylon-6
Polyester

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Chemical Process
Neoprene is the trade name of

Phenol formaldehyde
Polychloroprene
Styrene-butadiene rubber
Polyurathane

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Chemical Process
The ideal pulp for the manufacture of paper should have high __________ content.

Lignin
None of these
Cellulose
Both A & B

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