Chemical Engineering - Chemical Process

26. 

Thermosetting materials

A. are cross-linked molecules.
B. soften on application of heat.
C. are solvent soluble.
D. none of these.

Answer: Option A

Explanation:

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27. 

Pick out the wrong statement. Iodine value of an oil or fat is

A. the number of grams of iodine taken up by 100 gm of oil or fat.
B. a measure of its unsaturation.
C. helpful in findings its adulteration & its suitability for making soap.
D. independent of the type of oil, whether it is drying or non-drying.

Answer: Option D

Explanation:

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28. 

Nickel is not used as a catalyst in the

A. Fischer-Tropsch process.
B. shift conversion.
C. hydrogenation of oil.
D. Ostwald's process of HNO3 manufacture.

Answer: Option D

Explanation:

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29. 

__________ iron is the purest form of iron.

A. Cast
B. Wrought
C. Pig
D. High silicon

Answer: Option B

Explanation:

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30. 

Enamels

A. give good glossy finish.
B. are same as varnish.
C. are prepared from non-drying oil.
D. do not contain pigment.

Answer: Option A

Explanation:

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