Chemistry · Oct / Nov 2021 · Paper 11 · Question 2
5070Rate of reaction
A student follows the rate of the reaction between marble chips, CaCO3, and dilute hydrochloric acid. CaCO3 + 2HCl → CaCl2 + CO2 + H2O Which diagrams show apparatus that, with a stopwatch, is suitable for this experiment?
- A1 only
- B1 and 2 only
- C2 and 3 only
- D1, 2 and 3
As printed in the paper
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Correct answer: B. 1 and 2 only
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