Assertion : Chlorine sinks are formed during summer, hence , preventing ozone depletion.
Reason : In summer seasons, nitrogen dioxide and methane react with chlorine monoxide and chlorine radicals.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the c orrect explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

a

Explanation

During summer, nitrogen dioxide and methane react with chlorine monoxide and chlorine redicals, forming chlorine sinks, preventing much ozone depletion.
`Cloverset(.)C_((g))+NO_(2(g))rarrClONO_(2(g))`
`overset(.)Cl_((g))+CH_(4(g))rarroverset(.)CH_(3(g))+HCl_((g))`
`ClONO_(2(g))+H_(2)O_((g))rarrHOCl_((g))+HNO_(3(g))`
`ClONO_(2(g))+HCl_((g))rarrCl_(2(g))+HNO_(3(g))`