The following reaction 

4NH 2 (g) + 5O 2 (g) → 4NO(g) + 6H 2 O(g)

is an example of a 


(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)



  • Displacement Reaction : Reaction in which more reactive element takes the place of less reactive element.
  • Combination Reaction : When two or more substances react to form a single product, it is known as combination reaction.
  • Neutralisation reaction : A reaction in which acid and base react to form salt and water
  • Redox reaction: In this type of reaction, both oxidation and reduction take place simultaneously.


The above reaction is an example of displacement as well as redox reaction


So, the correct answer is (c) - (i) and (iii) 

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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo