Refrigerants R11 and R12 have a greater impact on ozone depletion

Question

Directions: The following  items consist of two statements one labeled at the ‘Assertion A’ and the other as ‘Reason (R)’. You are to examine these two statements carefully and select the answers to these items using the codes given below

        (a) Both A and R are individually true and R is the correct explanation of A

         (b) Both A and R are individually true but R is not the correct explanation of A

         (c) A is true but R s false               

         (d) A is false but R is tru

       Assertion (A):             Refrigerants R₁₁ and R₁₂ have a greater impact on ozone depletion than R₂₂

         Reason (R):              R₂₂ has a larger number of chlorine atoms