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CHEMICAL PROCESS

Chemical Process
Electrodeposition of metals i.e. electroplating is never done on

Non-metals
Refractories
Metals
Alloys

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Chemical Process
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to

Reduce its viscosity
Increase the variation in its viscosity with temperature
Increase its viscosity
Reduce the variation in its viscosity with temperature

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Chemical Process
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

Nylon-66
Bakelite
Neoprene
Teflon

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Chemical Process
Lindane is

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

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Chemical Process
Litharge is

Zinc sulphide
Zinc oxide
Lead oxide
Cellulosic photographic material

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