Chemical Process MCQs

Question 1

Phthalic anhydride is made by the

Accepted Answer

Oxidation of naphthalene

Answer

Oxidation of benzene

Answer

Dehydrogenation of ethyl benzene

Answer

None of these

Question 2

Iron ore hametite is concentrated using

Accepted Answer

Gravity separation

Answer

Electro magnetic separation mainly

Answer

Froth floatation

Answer

Roasting

Question 3

Hard water

Accepted Answer

Is not unfit for drinking purpose

Answer

Does not affect the lather formation by soap

Answer

Pollutes the water stream

Answer

All of the above

Question 4

Chemical formula of BHC, which is an insecticide is

Accepted Answer

C6H6Cl6

Answer

C6Cl6

Answer

C6H5Cl

Answer

C6H4Cl2

Question 5

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

Accepted Answer

Independent of

Answer

Directly proportional to

Answer

Inversely proportional to

Answer

Proportional to the square of

Question 6

Which of the following is an explosive?

Accepted Answer

All of the above

Answer

Nitroglycerene

Answer

Trintrotoluene (TNT)

Answer

Cellulose nitrate

Question 7

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

Accepted Answer

Pollution of water stream by mercury

Answer

High cost of mercury

Answer

High specific gravity of mercury

Answer

Non-availability of high purity mercury

Question 8

Thermosetting plastic materials

Accepted Answer

Can not be melted after forming

Answer

Can be repeatedly melted

Answer

Is useful for melt casting

Answer

Is useful for spinning

Question 9

Industrial production of chloroform requires acetone and

Accepted Answer

Calcium hypochlorite

Answer

Phosgene

Answer

Chlorine

Answer

Ammonium chloride