A-LevelChemistryChemical bondingMay/June 2017Paper 1 Q181 Mark
The ammonium ion is formed by the following reaction. NH₃ + H⁺ → NH₄⁺ Which statement about the species involved in this reaction is correct?
AThe ammonia molecule contains a dative covalent bond.
BThe ammonium ion is a Brønsted-Lowry base as it has accepted a proton.
CThe H-N-H bond angle changes from 107° in ammonia to 90° in the ammonium ion.
DThe number of electrons surrounding each nitrogen atom does not change.
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of chemical bonding within the Chemistrysyllabus. The examiner's mark scheme requires...
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