Chemistry and Industry - Jamb Chemistry Past Questions and Answers

Question 46:

• JAMB 1990

In the Haber process for the manufacture of ammonia, the catalyst commonly used is finely divided ?

A. Vanadium
B. Platinum
C. Iron
D. Copper

Question 47:

• JAMB 1990

Select the right answer from the structure above.Which of the following compounds represents the polymerization product of ethyne?

A. A
B. B
C. C
D. D

Question 48:

• JAMB 1991

Which of the following can be obtained by fractional distillation?

A. Nitrogen from liquid air
B. Sodium chloride from sea water
C. Iodine from a solution of Iondine in carbon tetrachloride
D. Sulphur from a solution of sulphur incarbon disulphide

Question 49:

• JAMB 1991

Which of the following can be obtained by fractional distillation?

A. Nitrogen from liquid air
B. Sodium chloride from sea water
C. Iodine from a solution of Iondine in carbon tetrachloride
D. Sulphur from a solution of sulphur incarbon disulphide

Question 50:

• JAMB 1991

Which of the following are mixtures?
i, Petroleum
ii, Rubber latex
iii. Vulcanizer's solution
iv, Carbon (II)sulphide

A. I, ii and iii
B. I, ii and iv
C. I and ii only
D. I and iv