DP Chemistry (last assessment 2024)

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Question 21M.2.sl.TZ2.c(ii)

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.sl.TZ2.c(ii)
Level sl Paper 2 Time zone TZ2
Command term Outline Question number c(ii) Adapted from N/A
c(ii).
[Maximum mark: 1]
21M.2.sl.TZ2.c(ii)

Limestone can be converted into a variety of useful commercial products through the lime cycle. Limestone contains high percentages of calcium carbonate, CaCO3.

Outline why a catalyst has such an effect.

[1]

Markscheme

provides an alternative «reaction» pathway/mechanism ✓


Do not accept “lower activation energy” only.

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