Chemical Engineering - Chemical Reaction Engineering

6. 

The reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.

A. biochemical
B. photochemical
C. catalytic
D. autocatalytic

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

7. 

A typical example of an exothermic reversible reaction conducted at high pressure in industry is

A. dehydration of ethanol.
B. methanol synthesis.
C. reformation of methane.
D. polymerisation of ethylene.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

8. 

Study of chemical kinetics is the easiest in the case of __________ reactions.

A. irreversible
B. reversible
C. surface
D. side

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

9. 

In autocatalytic reactions,

A. one of the reactants acts as a catalyst.
B. one of the products acts as a catalyst.
C. catalysts have very high selectivity.
D. no catalyst is used.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

10. 

Semibatch reactor is preferred, when a/an

A. a highly exothermic reaction is to be controlled.
B. undersirable side reaction (at high concentration of one of the reactants) is to be avoided.
C. a gas is to be reacted with liquid (e.g. hydrogenation of fat).
D. all (a), (b), and (c).

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.