Question

The EMF of the cell
\( \text{Ti} \mid \text{Ti}^+ (0.001\,\text{M}) \; \| \; \text{Cu}^{2+} (0.01\,\text{M}) \mid \text{Cu} \)
is \( 0.83\,\text{V} \).
The cell EMF can be increased by:

• A. Increasing concentration of Ti⁺ ions
• B. Increasing concentration of Cu²+ ions
• C. Increasing concentration of Ti⁺ and Cu²+ ions
• D. None of these

Hint:

Increase cathode potential to increase cell EMF.

Answer 1

The Correct Option is B

Step 1: Nernst equation shows EMF increases when cathode ion concentration increases.
Step 2: Increasing Ti⁺ (anode ion) lowers EMF.
Step 3: Increasing Cu²+ increases EMF.