The rate of the hydrogen in the reaction Zn(s) + 2HCI (aq) → ZnCI 2(g)
CHEMISTRY
WAEC 1989
The rate of the hydrogen in the reaction Zn(s) + 2HCI (aq) → ZnCI 2(g) + H2(aq) + H2(g) can be increased by
- A. using Zinc powder instead of Zinc granules
- B. using dilute instead of concentrated hydrochloric acid
- C. cooling the container in which the mixture is placed
- D. using an alloy of zinc instead of pure zinc
Correct Answer: A. using Zinc powder instead of Zinc granules
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