A-LevelChemistryChemical bonding9701/12 · May/June 2015 · Q171 Mark

Which statement about the ammonium ion, NH₄⁺, is correct?

AAll bond angles are 107°.

BAmmonium ions are formed when ammonia behaves as an acid.

CAmmonium ions are unreactive when heated with NaOH(aq).

DThe bonds are all the same length.

✓ Correct answer

D: The bonds are all the same length.

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Topic: Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2015 Paper 1 Variant 2, question 17.

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