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Chemical Process

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

Blotting paper
Coloured paper
Writing paper
Bond paper

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Chemical Process
Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

Sodium chloride
Sodium sulphate
Calcium sulphate
Magnesium chloride

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Chemical Process
Production of alcohol by fermentation of molasses is an __________ process.

Both B and C
Aerobic
Anaerobic
Endothermic

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Chemical Process
Catalyst used in the oxidation of benzene to produce maleic anhydride is

V₂O₅
Ni
Cr
Pt

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Chemical Process
Magnesium and calcium __________ cause temporary hardness of water.

Carbonates
Bicarbonates
Sulphates
Phosphates

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Chemical Process
Claude process of gas liquefaction employs

Heat exchange with colder stream
Adiabatic expansion against a piston or in a turbine
Merely compression of gas beyond its critical pressure
Joule-Thomson expansion cooling

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