Question

Assertion (A) $E_{\text{cell }}$ increases with increase in concentration of $A{g}^{+}$ions.
Reason (R) $E_{\text{cell }}$ has positive value.

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

Answer 1

Answer: (B)

$(A)$ and $(R)$ both are correct but $(R)$ is not the explanation of $(A)$.
$\because E_{\text{cell }}=E^{\circ }-\frac{0.0591}{n}\log \frac{1}{\left[M^{n+}\right]}$
or, $E_{\text{cell }}=E^{\circ }+\frac{0.591}{1}\log \left[A{g}^{+}\right]$
Thus, $E\propto \left[A{g}^{+}\right]$
Hence, $E$ increase with the increase in concentration of $A{g}^{+}$.