DP Chemistry (last assessment 2024)

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Question 18N.2.hl.TZ0.a.ii

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.2.hl.TZ0.a.ii
Level hl Paper 2 Time zone TZ0
Command term Draw Question number a.ii Adapted from N/A
a.ii.
[Maximum mark: 1]
18N.2.hl.TZ0.a.ii

Butanoic acid, CH3CH2CH2COOH, is a weak acid and ethylamine, CH3CH2NH2, is a weak base.

Draw a diagram showing the delocalization of electrons in the conjugate base of butanoic acid.

[1]

Markscheme

Diagram showing:
dotted line along O–C–O AND negative charge

 

Accept correct diagrams with pi clouds.

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