Assertion (A): Cu cannot liberate hydrogen from acids.
Reason (R ): Because it has positive electrode potential.

Options

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

Answer

A

Explanation

Cu has `E^(@)` value of (+0.34V). So, it cannot reduce `H^(+)` of acids to `H_(2)`.