Question -Assertion (A): Use of Chlorofluorocarbons (CFC’s) is hazardous to environment. Reason (R): CFC’s are very reactive, flammable and toxic gases.
Options:
A .  Both A and R are correct and R is the correct explanation of A.
B .  Both A and R are correct but R is not the correct explanation of A.
C .  A is correct but R are not correct.
D .  A is not correct but R is correct.
Answer: Option C : C CFC’s are responsible for depletion of ozone layer. Hence it is hazardous to environment. But they are non-reactive, non-flammable and non-toxic gases. That’s why they are used in refrigerators.
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