DP Chemistry (last assessment 2024)

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Question 19M.1.sl.TZ1.17

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.sl.TZ1.17
Level sl Paper 1 Time zone TZ1
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
19M.1.sl.TZ1.17

Which will increase the rate of reaction between calcium carbonate and hydrochloric acid?

    I. an increase in temperature
    II. an increase in concentration of hydrochloric acid
    III. an increase in particle size of calcium carbonate

A. I and II only

B. I and III only

C. II and III only

D. I, II and III

[1]

Markscheme

A

Examiners report

One teacher pointed out that the question should have stated for a fixed mass of calcium carbonate. However, this question was one of the highest scoring so it did not cause confusion.

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