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Chemical Process

Chemical Process
Plaster of Paris is

CaSO₄.½H₂O
Both A and B
Same as gypsum
Used for setting of broken bones

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Chemical Process
Vinyl chloride (CH₂ = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

100 kgi/cm² & 500°C
10 kgf/cm² & 1000°C
40 kg/cm² & 200°C
4 kgf/cm² & 500°C

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Chemical Process
Massacuits is a terminology used in the __________ industry.

Paint
Oil hydrogenation
Sugar
Soap

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Chemical Process
The major constituent of black liquor generated during paper manufacture is sodium

Carbonate
Sulphate
Hydroxide
Bi-carbonate

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Chemical Process
__________ is used as a flux in the smelting of copper ore like chalcopyrite.

Coke breeze
Lime powder
Dolomite
Silica/quartz

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Chemical Process
Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Stearic acid
Calcium & aluminium stearate
Xanthates
Formic acid

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