Chemical Engineering - Chemical Process

26. 

Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

A. adsorbs
B. oxidises
C. reduces
D. converts

Answer: Option A

Explanation:

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27. 

Producer gas consists mainly of

A. CO, CO2 N2, H2
B. CO, H2
C. H2, CH4
D. C2H2, CO2, H2

Answer: Option A

Explanation:

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28. 

Neoprene is the trade name of

A. polyurathane
B. phenol formaldehyde
C. polychloroprene
D. styrene-butadiene rubber

Answer: Option C

Explanation:

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29. 

Hard water

A. does not affect the lather formation by soap.
B. is not unfit for drinking purpose.
C. pollutes the water stream.
D. all (a), (b) and (c).

Answer: Option B

Explanation:

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30. 

Which of the following is an organo-metal-lic compound ?

A. Isopropyl alcohol
B. Tetra-ethyl lead
C. Zeolite
D. Cumene

Answer: Option B

Explanation:

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