Chemical Engineering - Chemical Process

31. 

H2S is scrubbed from refinery gases by absorption using

A. dilute H2SO4
B. ethanol amine
C. chilled water
D. tri-butyl phosphate

Answer: Option B

Explanation:

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32. 

Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

A. Oxidation of Na+ ions
B. Oxidation of Cl- ions
C. Reduction of Na+ ions
D. Reduction of Cl- ions

Answer: Option B

Explanation:

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33. 

Zeolite is a/an

A. naturally occuring clay which is capable of exchanging cations.
B. abrasive material.
C. catalyst used in shift conversion.
D. none of these.

Answer: Option A

Explanation:

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34. 

Type of glass used in optical work is the __________ glass.

A. soda-lime
B. fibre
C. lead
D. borosilicate

Answer: Option C

Explanation:

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35. 

Pick out the wrong statement pertaining to the soap manufacture.

A. Transparent soaps are made by cold process.
B. Organic pigments are used as colouring materials in the soap manufacture.
C. Both laundary as well as toilet soaps are manufactured by hot process.
D. Colourless rosin is used in the manufacture of laundary soaps.

Answer: Option A

Explanation:

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