DP Chemistry (last assessment 2024)

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

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

d(iv).

[Maximum mark: 1]

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

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

Suggest a metal that could replace nickel in a new half-cell and reverse the electron flow. Use section 25 of the data booklet.

[1]

Markscheme

$Bi / Cu / Ag / Pd / Hg / Pt / Au$ ✔

Accept $S b$ OR $A s$ .

Examiners report

80% could correctly pick a metal to reverse the electron flow, however some candidates thought a more reactive, rather than a less reactive metal than nickel would reverse the electron flow.

Syllabus sections

Core

Core » Topic 9: Redox processes » 9.1 Oxidation and reduction

Core » Topic 9: Redox processes » 9.2 Electrochemical cells

Core » Topic 9: Redox processes

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

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