Question

Assertion (A) $E_{\text {cell }}$ increases with increase in concentration of $Ag ^{+}$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, $E_{\text {cell }}=E^{\circ}+\frac{0.591}{1} \log \left[ Ag ^{+}\right]$
Thus, $E \propto\left[ Ag ^{+}\right]$
Hence, $E$ increase with the increase in concentration of $Ag ^{+}$.