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Chemical Process

Chemical Process
Alum [Al2(SO₄)₃] is used as a coagulant in water treatment to remove

Bacteria
Colour
All of these
Turbidity

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Chemical Process
Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?

Caustic soda
Sodium borate
Sodium tripolyphosphate (STPP)
Sodium silicate

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Chemical Process
Lindane is

BHC (Benzene Hexa Chloride) containing 99% γ-isomer
Both B and C
A by-product of BHC manufacture
Not a fumigant

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Chemical Process
Chloral is used in the manufacture of

BHC
DDT
None of these
Parathion

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Chemical Process
The manufacture of Kraft pulp is done by a/an __________ process.

Neutral
Alkaline
None of these
Acidic

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Chemical Process
Boiling of water containing temporary hardness produces

None of these
CO₂
CaHCO₃
CaSO₄

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