Chemical Process - Chemical Engineering Questions and Answers

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Chalcopyrite is the main ore of

Copper

Lead

Tin

Iron

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Phthalic anhydride is made by the

Oxidation of naphthalene

Oxidation of benzene

Dehydrogenation of ethyl benzene

None of these

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Iron ore hametite is concentrated using

Electro magnetic separation mainly

Gravity separation

Froth floatation

Roasting

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Hard water

Does not affect the lather formation by soap

Is not unfit for drinking purpose

Pollutes the water stream

All of the above

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Chemical formula of BHC, which is an insecticide is

C₆H₆Cl₆

C₆Cl₆

C₆H₅Cl

C₆H₄Cl₂

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

Independent of

Directly proportional to

Inversely proportional to

Proportional to the square of

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Which of the following is an explosive?

Nitroglycerene

Trintrotoluene (TNT)

Cellulose nitrate

All of the above

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Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?

High cost of mercury

High specific gravity of mercury

Non-availability of high purity mercury

Pollution of water stream by mercury

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Thermosetting plastic materials

Can be repeatedly melted

Is useful for melt casting

Can not be melted after forming

Is useful for spinning