Assertion : $\mathrm{Cu}$ is stronger reducing agent than $\mathrm{H}_2$. Reason : $E^{\circ}$ of…

Assertion : $\mathrm{Cu}$ is stronger reducing agent than $\mathrm{H}_2$. Reason : $E^{\circ}$ of $\mathrm{Cu}^{2+} / \mathrm{Cu}$ is negative.
  1. both assertion and reason are true and reason is the correct explanation of assertion.
  2. both assertion and reason are true but reason is not the correct explanation of assertion.
  3. assertion is true but reason is false.
  4. both assertion and reason are false.

Solution

$E^{\circ}$ of $\mathrm{Cu}^{2+} / \mathrm{Cu}$ is $+0.34 \mathrm{~V}$ and positive $E^{\circ}$ means that the redox couple is a weaker reducing agent than the $\mathrm{H}^{+} / \mathrm{H}_2$ couple.

Asked in: NEET 2015 (Phase 2)

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