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Chemical Process

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

Bleaching powder
Calcium sulphate
Alum
Chlorine

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Chemical Process
Most widely and commonly used coagulant for the removal of suspended impurities in water is

Alum
Bleaching powder
Slaked lime
Copper sulphate

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Chemical Process
Pig iron is produced by blast furnaces in India using mostly the iron ore named

Hematite
Chalcopyrite
Magnetite
Siderite

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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

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

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Chemical Process
Gypsum is chemically

Calcium chloride
Sodium sulphate
Potassium sulphate
Calcium sulphate

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Chemical Process
__________ of rubber decreases after its vulcanisation.

Maximum service temperature
Tensile strength
Resistance to the action of organic solvent
Tackiness

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MORE MCQ ON Chemical Process

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