DP Chemistry (last assessment 2024)

Question 20N.2.hl.TZ0.d(i)

Date	November 2020	Marks available	[Maximum mark: 1]	Reference code	20N.2.hl.TZ0.d(i)
Level	hl	Paper	2	Time zone	TZ0
Command term	Label	Question number	d(i)	Adapted from	N/A

d(i).

[Maximum mark: 1]

20N.2.hl.TZ0.d(i)

Nickel catalyses the conversion of propanone to propan-2-ol.

The diagram shows an unlabelled voltaic cell for the reaction

${Pb}^{2 +} (aq) + Ni (s) \to {Ni}^{2 +} (aq) + Pb (s)$

Label the diagram with the species in the equation.

[1]

Markscheme

Examiners report

A surprising number of No Response for a question where candidates simply had to label a diagram with the species in the equation. Some candidates had the idea but did not use the species for electrolytic cell, e.g., Pb(SO₄) instead of Pb²⁺(aq).

Syllabus sections

Core

Core » Topic 9: Redox processes » 9.2 Electrochemical cells

Core » Topic 9: Redox processes

Question 20N.2.hl.TZ0.d(i)

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