Chemical Engineering - Chemical Process

46. 

Plaster of Paris is

A. CaSO4.H2O
B. used for setting of broken bones
C. both (a) and (b)
D. same as gypsum

Answer: Option C

Explanation:

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47. 

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an

A. explosive
B. soap
C. detergent
D. analgesic drug

Answer: Option C

Explanation:

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48. 

Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

A. 80
B. 90
C. 98
D. 100

Answer: Option C

Explanation:

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49. 

Coke oven gas consists mainly of

A. H2, & CH4
B. CO, & CO2
C. H2, & CO
D. CH4, & CO

Answer: Option A

Explanation:

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50. 

Chemical name of 'alum' is

A. barium sulphate.
B. aluminium sulphate.
C. aluminium chloride.
D. calcium sulphate.

Answer: Option B

Explanation:

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