A-LevelChemistryReaction kinetics9701/12 · Feb/Mar 2020 · Q341 Mark
Hydrochloric acid reacts with zinc. 2HCl(aq) + Zn(s) → ZnCl2(aq) + H2(g) What will increase the rate of this reaction but will not change the Boltzmann distribution of molecular energies? 1 addition of a suitable catalyst 2 an increase in concentration of hydrochloric acid 3 an increase in temperature of hydrochloric acid
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct answer
B: 1 and 2 only are correct
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