Chemistry Past Questions

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151

P(g) + Q(g) ↔ 3R(s) + S(g) ΔH is negative
Which of the following will increase the yield of R?

View Answer & Discuss (6) JAMB 2001

152

A metal M displaces zinc from zinc chloride solution. This shows that

View Answer & Discuss (8) JAMB 2001

153

Which of the following best explains the increase in the rate of a chemical reaction as the temperature rises?

A. The bonds in the reacting molecules are more readily broken
B. The molecular collisions become more violent
C. A lower proportion of the molecules has the necessary minimum energy to react
D. The collision frequency of the molecules increase

View Answer & Discuss (2) JAMB 2001

154

What current in amperes will deposit 2.7g of aluminium in 2 hours?
[Al = 27, F = 96 500 C mol-1]

View Answer & Discuss (21) JAMB 2001

155

Ethanoic acid is

View Answer & Discuss (8) JAMB 2001

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