The standard potential of $\text{Cu}^{+2}/\text{Cu}$ is $0.34$ V at $298$ K. Calculate its potential at the same temperature when the $\text{Cu}^{+2}$ ion concentration is $0.1$ M.

Which from following options is true when an electrolyte solution is diluted ?

Match List I with List II.

List I (Conversion)	List II (Number of Faraday required)
A. $1$ mole of $\text{H}_2\text{O}$ to $\text{O}_2$	I. $3F$
B. $1$ mol of $\text{MnO}_4^-$ to $\text{Mn}^{2+}$	II. $2F$
C. $1.5$ mol of Ca from molten $\text{CaCl}_2$	III. $1F$
D. $1$ mol of FeO to $\text{Fe}_2\text{O}_3$	IV. $5F$

Choose the correct answer from the options given below :

At $298$ K, the specific conductance ($\kappa$) of a $0.0020$ M NaCl solution is $2.50 \times 10^{-4} \text{ S cm}^{-1}$. Calculate the molar conductivity ($\Lambda_m$) of the solution in $\text{S cm}^2 \text{ mol}^{-1}$.