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

Answer: (i) displacement reaction (iii) redox reaction 

4NH₃(g) + 5O₂(g)→ 4NO(g) + 6H₂O(g)

Oxygen displaces the hydrogen of ammonia. Hence, this is a displacement reaction. The nitrogen of ammonia is getting oxidized with the addition of oxygen.

• Both oxidation and reduction occur at the same time, the above reaction is referred to as a redox reaction.
• Since the H of NH3 is displaced by oxygen, it is a displacement reaction.
• It is usually followed by oxidation and reduction, a displacement reaction is also a redox reaction.