Post Utme Economics Past Questions and Answers

Question 986:

Water was added to sodium dioxonitrate \((\mathrm{V})\) salt in a test tube and the test tube became colD. The reaction is ____________

A. Reversible
B. Exothermic
C. Endothermic
D. Explosive

Question 987:

Which of the following is an alloy of aluminium?

A. Brass
B. Bronze
C. Galena
D. Magnalium

Question 988:

Which of the following is an alkyne?

A. \(\mathrm{C}_5 \mathrm{H}_8\)
B. \(\mathrm{C}_{10} \mathrm{H}_{21}\)
C. \(\mathrm{C}_8 \mathrm{H}_{16}\)
D. \(\mathrm{C}_5 \mathrm{H}_{12}\)

Question 989:

Pick out the odd compound ____________

A. Toluene
B. Phenol
C. Ethanol
D. Benzene

Question 990:

Which of the following statements is correct?

A. The randomness of molecules is less in a liquid than in a solid
B. Diffusion does not occur in solids at all temperatures
C. The intermolecular forces are weaker in liquids than in solids
D. The pressure of a gas is the combined force with which the gas molecules collide with one another in a container