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Chemical Process

Chemical Process
Which of the following paper does not require a filler during manufacture?

Coloured paper
Bond paper
Writing paper
Blotting paper

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

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

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Chemical Process
Concentration of sulphide ores is done usually by

Froth floatation
Roasting
Electro magnetic separation
Smelting

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Chemical Process
Riboflavin is a/an

Vitamin
Anaesthetics
Anti-malarial drug
Analgesic drug

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Chemical Process
Isopropyl benzene produced by alkylation of benzene with propylene is known as

Mercaptans
Neoprene
Gelatin
Cumene

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Chemical Process
Rosin soap is added during paper manufacture to

Impart adhesive properties
Improve opacity
None of these
Impart resistance to penetration by liquids

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