Chemical Engineering - Chemical Process

6. 

Caprolactum (a raw material for nylon-6 manufacture) is produced from

A. phenol
B. naphthalene
C. benzene
D. pyridine

Answer: Option C

Explanation:

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7. 

The purpose of adding Na2CO3 to water of low alkalinity is to

A. permit the use of alum as a coagulant.
B. increase the softening capacity of zeolite.
C. facilitate easy regeneration of zeolite.
D. all (a), (b) and (c).

Answer: Option A

Explanation:

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8. 

Ca(OH)2 is called

A. quicklime
B. slaked lime
C. limestone
D. gypsum

Answer: Option B

Explanation:

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9. 

Percentage of uranium in carnotite ore found in Jadugoda (Jharkhand) is about

A. 0.1 to 0.5
B. 1 to 5
C. 5 to 10
D. 15 to 25

Answer: Option A

Explanation:

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10. 

Potassium is kept & transported under

A. water
B. liquid ammonia
C. kerosene oil
D. alcohol

Answer: Option C

Explanation:

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