Chemical Engineering - Chemical Process

46. 

Which of the following is an ore of iron ?

A. Galena
B. Chalcopyrite
C. Hematite
D. Bauxite

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

47. 

Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?

A. NH3
B. NaCl
C. CaO
D. Coke

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

48. 

High purity nitrogen is used in

A. making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils.
B. fire fighting purposes.
C. both (a) & (b).
D. neither (a) nor (b).

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

49. 

Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.

A. coke and sand
B. brine and coal
C. coke and caustic soda
D. none of these

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

50. 

Naphthalene is removed from coke oven gas by

A. adsorbing on palladium.
B. absorbing in ethanolamine.
C. scrubbing with wash oil.
D. passing it through electrostatic precipitator.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

« Prev   1 2 3 4 5 6 7 8 9 10