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Chemical Process

Chemical Process
Dehydrogenation of ethyl benzene produces

Naphthalene
Phenol
Benzoic acid
Styrene

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Chemical Process
Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

50 - 60
43832
80 - 85
15 - 20

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Chemical Process
Salt is added in the kettle during soap manufacture to separate

The metallic soap
Glycerine from lye
Soap from lye
The unsaponified fat from soap

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Chemical Process
The temperature in the calcium carbide furnace is __________ °C.

700-850
4000-4500
2000-2200
200-300

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Chemical Process
Air used in aerobic fermentation must be sterilized, otherwise the

Uniformity of product cannot be achieved
Recovery of product will be difficult
None of these
Contamination of pure culture would result

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Chemical Process
Phosphoric acid is prepared from

Cryolite
Chalcopyrite
Rock phosphate
None of these

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