The rate of the hydrogen in the reaction Zn s 2... - WAEC Chemistry 1989 Question
The rate of the hydrogen in the reaction Zn(s) + 2HCI (aq) → ZnCI 2(g) + H 2(aq) + H 2(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 option: a
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