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CHEMICAL PROCESS

Chemical Process
Phthalic anhydride is made by the

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

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Chemical Process
Iron ore hametite is concentrated using

Roasting
Froth floatation
Gravity separation
Electro magnetic separation mainly

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Chemical Process
Hard water

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

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

C₆Cl₆
C₆H₅Cl
C₆H₆Cl₆
C₆H₄Cl₂

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

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

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