Assertion : Free radicals are short lived and highly reactive.
Reason : Free radicals are highly unstable.

Options

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

Answer

B

Explanation

Since free radicals contain odd electrons, so they are short lived and they readily try to pair up the odd electrons to form neutral molecules that is why they are highly reactive.