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CHEMICAL PROCESS

Chemical Process
Phthalic anhydride is made by the

Dehydrogenation of ethyl benzene
Oxidation of naphthalene
Oxidation of benzene
None of these

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Chemical Process
Iron ore hametite is concentrated using

Electro magnetic separation mainly
Gravity separation
Roasting
Froth floatation

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Chemical Process
Hard water

Pollutes the water stream
All of these
Is not unfit for drinking purpose
Does not affect the lather formation by soap

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Chemical Process
Chemical formula of BHC, which is an insecticide is

C₆H₆Cl₆
C₆H₄Cl₂
C₆Cl₆
C₆H₅Cl

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Chemical Process
At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

Directly proportional to
Independent of
Inversely proportional to
Proportional to the square of

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