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Chemical Process

Chemical Process
The most commonly used substance to speed up the sedimentation of sewage is

Chlorine
Sulphuric acid
Lime
Sodium bisulphite

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Chemical Process
Which of the following fuel gases contains maximum amount of carbon monoxide?

L.D. converter gas
Blast furnace gas
Water gas
Coke oven gas

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Chemical Process
Which of the following is not required in the manufacture of soda ash by Solvay process?

Limestone
Nitric acid
None of these
Ammonia

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Chemical Process
The most widely used coagulant for removing suspended impurities from water is

Alum
Bleaching powder
Chlorine
Calcium sulphate

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Chemical Process
The main product of high temperature carbonisation of coal is

Tar
Phenol
Coke
Ammonia

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Chemical Process
Electric bulbs are made of __________ glass.

Flint
Crookes
Jena
Pyrex

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