Chemical Engineering - Chemical Process

1. 

Starting material for the production of styrene butadiene rubber (SBR) is

A. ethyl alcohol
B. ethylene
C. both (a) & (b)
D. neither (a) nor (b)

Answer: Option C

Explanation:

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2. 

Which one of the following is not an elastomer ?

A. Polyisoperene
B. Neoprene
C. Nitrile-butadiene
D. None of these

Answer: Option D

Explanation:

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3. 

Which of the following processes can remove both temporary as well as permanent hardness of water ?

A. Filtration
B. Boiling
C. Distillation
D. None of these

Answer: Option C

Explanation:

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4. 

Dacron is a

A. condensation product of hexam-ethylene diamine and adipic acid.
B. thermosetting material.
C. condensation product of dimethyl terephthalate and ethylene glycol.
D. none of these.

Answer: Option D

Explanation:

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5. 

Rancidity of the fatty oil can be reduced by its

A. decoloration
B. hydrogenation
C. oxidation
D. purification

Answer: Option B

Explanation:

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