Chemical Engineering - Chemical Process

21. 

Haemoglobin is a/an

A. amino acid
B. biological catalyst
C. protein
D. enezyme

Answer: Option C

Explanation:

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22. 

Epoxy resin

A. is a good adhesive.
B. is an elastomer.
C. cannot be used for surface coatings.
D. is a polyester.

Answer: Option A

Explanation:

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23. 

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

A. 10
B. 25
C. 50
D. 98

Answer: Option C

Explanation:

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24. 

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

A. High cost of mercury.
B. High specific gravity of mercury.
C. Non-availability of high purity mercury.
D. Pollution of water stream by mercury.

Answer: Option D

Explanation:

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25. 

Esterification reaction produces

A. detergent
B. vanaspati
C. soap
D. mercaptans

Answer: Option C

Explanation:

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