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Chemical Process

Chemical Process
A bio-catalyst produced by living cells which acts independent of the cell is called a/an

Substrate
Nutrient
Enzyme
None of these

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Chemical Process
Phosphoric acid is prepared from

Rock phosphate
Cryolite
Chalcopyrite
None of these

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Chemical Process
Phthalic anhydride is used

In making PVC
As plasticisers
For making nylon-6
In insecticides manufacture

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Chemical Process
Molecular weights of polymers are in the range of

10² - 10⁷
10² - 10²
10⁵ - 10⁹
10⁹ - 10¹¹

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Chemical Process
Chloramines are used in water treatment for

Corrosion control
Disinfection and control of taste & odour
Control of bacteria
Removing turbidity

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Chemical Process
Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

Surfactant
Anti soil redeposition agent
Optical brightening agent
Builder

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