Chemical Engineering - Chemical Process

1. 

Calgon used in water treatment is chemically

A. sodium phosphate
B. sodium hexametaphosphate
C. calcium phosphate
D. tricresyl phosphate

Answer: Option B

Explanation:

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2. 

Which oil is preferred for paint manufacture ?

A. Drying oil
B. Non-drying oil
C. Semi-drying oil
D. Saturated oil

Answer: Option A

Explanation:

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3. 

Styrene butadiene rubber (SBR) is

A. a natural rubber.
B. a synthetic polymer.
C. a synthetic monomer.
D. another name of silicone rubber.

Answer: Option B

Explanation:

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4. 

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

A. 1 atm & 100°C
B. 5 atm & 275°C
C. 100 atm & 500°C
D. 50 atm & 1000°C

Answer: Option B

Explanation:

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5. 

Glycerine is not used in the

A. manufacture of explosive.
B. conditioning and humidification of tobacco.
C. manufacture of pharmaceuticals.
D. none of these.

Answer: Option D

Explanation:

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