DP Chemistry (first assessment 2025)

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Question 22M.2.SL.TZ2.b

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Date May 2022 Marks available [Maximum mark: 2] Reference code 22M.2.SL.TZ2.b
Level SL Paper 2 Time zone TZ2
Command term Deduce Question number b Adapted from N/A
b.
[Maximum mark: 2]
22M.2.SL.TZ2.b

Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.

[2]

Markscheme

ZnCl2 (l) → Zn (l) + Cl2 (g)


balanced equation ✔
correct state symbols ✔

 

Accept ionic equation.

Examiners report

The performance was weak on this part-question as well. The overall equations did not balance atoms or charges on many of the incorrect answers. For the state symbols, many candidates used the aqueous state symbol, some gave the chloride ion a gaseous state symbol, and some candidates still had a solid zinc product even though they were directed to use the melting point of zinc in the data booklet. 12% of the candidates did not answer the question and the average mark was 0.5 out of 2 marks.

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