Assertion(A) Cu is less reactive than hydrogen.
Reason(R) `E_(Cu^(2+)//Cu)^(o+)` is negative.

Options

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

Explanation

Assertion is true but the reason is false Electrode potneial of `Cu^(2+)//CU` is +0.34V and Electrode potential of `2H^(+)//H_(2)` is 0.00V.
Hence, correct reason is due to positive value of `Cu^(2+) //Cu` it looses electron to `H^(+)` and get reduces, while `H_(2)` gas evolves out.