A-LevelChemistryElectrochemistry9701/12 · May/June 2010 · Q61 Mark

Ammonium nitrate, NH4NO3, can decompose explosively when heated. ΝΗ4ΝΟ3 → N2O + 2H2O What are the changes in the oxidation numbers of the two nitrogen atoms in NH4NO3 when this reaction proceeds?

A-2, -4

B+2, +6

C+4, -6

D+4, -4

✓ Correct answer

D: +4, -4

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Topic: Electrochemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2010 Paper 1 Variant 2, question 6.

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