List of top Chemistry Questions on Electrochemistry asked in AP EAMCET

The \( E^\Theta \) of \( M^{2+}|M \) is 0.3 V. At what concentration of \( Cu^{2+} \) (in mol \( L^{-1} \)), the \( E_{\text{cell}} \) value becomes zero?
\( \left(\frac{2.303RT}{F} = 0.06\right) \) (Conc. of \( M^{2+} = 0.1M \)).
2.644 g of metal (M) was deposited when 8040 coulombs of electricity was passed through molten MF\(_2\) salt. What is the atomic mass of M? (F = 96500 C mol\(^{-1}\))
Which one of the following alkali metals is the weakest reducing agent as per their \( E^\circ \) values?
At 300 K, the \( E^\ominus_{cell} \) of \[ \text{A(s)} + \text{B}^{2+}(\text{aq}) \rightleftharpoons \text{A}^{2+}(\text{aq}) + \text{B(s)} \] is 1.0 V. If \( \Delta_r S^\ominus \) of this reaction is 100 J K\(^{-1}\), what is \( \Delta_r H^\ominus \) (in kJ mol\(^{-1}\)) of this reaction?
(F = 96500 C mol\(^{-1}\))
The reduction potential of hydrogen electrode at \(25^\circ C\) in a neutral solution is
\[ (p_{H_2}=1 \text{ bar}) \]