The following reaction is an example of a:4NH3 (g) + 5O2 (g) → 4NO(g) + 6H2O(g)
(i) displacement reaction
(ii) combination reaction
(iii) redox reaction
(iv) neutralisation reaction
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (iii) and (iv)

Solution: Answer is (c)  (i) and (iii)

The reaction described here is a combination of displacement and redox reactions. The displacement reaction occurs when oxygen displaces hydrogen in ammonia, resulting in a displacement reaction. A redox reaction occurs when nitrogen is oxidised and oxygen is reduced, resulting in the reduction of nitrogen and the reduction of oxygen.