A certain reaction occurs in the following steps :
(1) `Cl_((g))+O_(3(g))to ClO_((g))+O_(2(g))`
(2) `ClO_((g))+O_((g))to Cl_((g))+O_(2(g))`
(a) What is the molecularity of each of the elementary steps ?
(b) Identify the reaction intermediate and write the chemical equation for overall reaction.

Explanation

(a) (i) Molecularity - Bimolecular
(ii) Molecularity - Bimolecular
(b) Intermediate - ClO
Overall reaction :
`{:(" "Cl_((g))+O_(3(g))rarr ClO_((g))+O_(2(g))),(" "ClO_((g))+O_((g))rarr Cl_((g))+O_(2(g))),(ulbar(" "O_(3(g))+O_((g))rarr 2O_(2(g))" ")):}`