Chemistryhard · Past Paper
What is the change in oxidation number of Nitrogen in the reaction: N2 + 3H2 -> 2NH3?
A0 to +3
B0 to -3
C+3 to 0
D-3 to 0
✓ Correct Answer: B — 0 to -3
Elemental Nitrogen (0) gains electrons to form Ammonia where Nitrogen is -3.
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