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Chemical Process

Chemical Process
Production of one ton of cement requires about __________ tons of limestone.

1.2
0.6
3.8
2.2

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Chemical Process
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

4000
8500
800
1600

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Chemical Process
__________ is produced by the dehydrogenation of ethyl benzene.

Cumene
Phenol
Ethyl alcohol
Styrene

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Chemical Process
Potassium is kept & transported under

Liquid ammonia
Alcohol
Water
Kerosene oil

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Chemical Process
Viscose rayon is

Regenerated cellulose acetate
Regenerated cellulose nitrate
None of these
Cellulose nitrate

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Chemical Process
Coagulant is used __________ filtration.

Before
After
To avoid
During

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