Chemical Engineering - Chemical Process

26. 

Carborundum consists mainly of

A. bauxite
B. silicon carbide
C. boron carbide
D. calcium carbide

Answer: Option B

Explanation:

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27. 

Wax is a

A. mixture of glycerides.
B. mixture of esters of polyhydric alcohols excepting glycerine.
C. liquid at room temperature.
D. mixture of glycerides of fatty acids.

Answer: Option B

Explanation:

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28. 

Catalyst used in the hydrogenation of oil is

A. nickel
B. platinum
C. iron
D. alumina

Answer: Option A

Explanation:

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29. 

Viscose rayon is

A. cellulose nitrate.
B. regenerated cellulose nitrate.
C. regenerated cellulose acetate.
D. none of these.

Answer: Option D

Explanation:

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30. 

Triple superphosphate is manufactured by reacting

A. phosphate rock with phosphoric acid.
B. phosphate rock with sulphuric acid.
C. phosphate rock with nitric acid.
D. ammonium phosphate with phosphoric acid.

Answer: Option A

Explanation:

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