Question

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 [NCERT Exemplar Problems]
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (iii) and (iv)

Answer 1

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non metals take part in displacement reaction.

Redox reaction- Oxidation is defined as an increase in oxidation state and reduction as a decrease in oxidation state. It is the transfer of electrons causing a change in oxidation state of chemical species.