DP Chemistry (last assessment 2024)

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Question 19M.1.sl.TZ1.20

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.sl.TZ1.20
Level sl Paper 1 Time zone TZ1
Command term Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
19M.1.sl.TZ1.20

Which is not a source of oxides of sulfur and nitrogen?

A. burning coal

B. internal combustion engines

C. burning methane

D. volcanic eruptions

[1]

Markscheme

C

Examiners report

One teacher thought this was a tricky question if candidates did not think of impurities in the combustion. However, 64 % of candidates answered correctly.

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