Post Utme Chemistry Past Questions and Answers

Question 1121:

The hybridization of the carbon atom in ethyne is ____________

A. SPn
B. \(SP ^{3} \)
C. \(SP ^{2}\)
D. SP
E. S

Question 1122:

In the Haber process for the manufacturer of ammonia, fincly divided iron is used as ____________

A. An ionizing agent
B. A reducing agent
C. A catalyst
D. A dehydrating agent
E. An oxidizing agent

Question 1123:

Nitrogen can best be obtained from a mixture of oxygen and nitrogen by passing the mixture over ____________

A. Potassium hydroxide
B. Heated gold
C. Heated magnesium
D. Heated Phosphorus
E. Calcium chloride

Question 1124:

At STP, how many litres of hydrogen can be obtained from the reaction of \(500 cm ^{3}\) of \(0.5 M H _{2} SO _{4}\) with excess zinc metal

A. \(22.4 dm ^{3}\)
B. \(11.2 dm ^{3}\)
C. \(65 dm ^{3}\)
D. \(5.6 dm ^{3} \)
E. \(0.00 dm ^{3}\)

Question 1125:

Tetraoxosulphate (VI) ions are final test using ____________

A. Acidified silver nitrate
B. Acidified barium chloride
C. Lime water
D. Dilute hydrochloric acid
E. Acidified had nitrate