DP Chemistry (last assessment 2024)

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Question 21M.2.sl.TZ1.b

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.sl.TZ1.b
Level sl Paper 2 Time zone TZ1
Command term Justify Question number b Adapted from N/A
b.
[Maximum mark: 1]
21M.2.sl.TZ1.b

Ethanol is obtained by the hydration of ethene, C2H4.

Justify why ethene has only a single signal in its 1H NMR spectrum.

[1]

Markscheme

hydrogen atoms/protons in same chemical environment ✔

Accept “all H atoms/protons are equivalent”.
Accept “symmetrical”

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