DP Chemistry (last assessment 2024)

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Question 20N.2.sl.TZ0.1d(iv)

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

Chlorine undergoes many reactions.

(d(iv))

Deduce the nucleophile for the reaction in d(iii).

[1]

Markscheme

hydroxide «ion»/OH- ✔


Do not accept NaOH.

Examiners report

This was a highly discriminating question. Only 30% of the candidates were able to identify the hydroxide ion as the nucleophile in the hydrolysis of chloroethane. Incorrect answers included NaOH where the ion was not specified. 14% of the candidates left this question blank.

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