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A-LevelChemistryEquilibria9701/12 · Oct/Nov 2016 · Q191 Mark

Water and ammonia take part in a reaction that produces the ammonium ion. Which statement about this reaction is correct?

ANeither the ammonia molecule nor the ammonium ion has a dipole moment.
BThe bond angle changes from 109.5° in the ammonia molecule to 107° in the ammonium ion.
CThe reaction is a redox reaction.
DThe water is acting as an acid.

✓ Correct answer

D: The water is acting as an acid.

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About this question

Topic
Equilibria, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2016 Paper 1 Variant 2, question 19.

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