A hypothetical electrochemical cell is shown below A |A^+ (xM)|| … - Vidyadip

MCQ

A hypothetical electrochemical cell is shown below $A |A^+ (xM)|| B^+ (yM)| B$ If cell potential is $+ 0.20\, V$, the cell reaction is :-

✓
$A + B^+ \to A^+ + B$
B
$A^+ + B \to A + B^+$
C
$A^+ + e^-\to A ; B^+ + e^-\to B$
D
The cell reaction cannot be predicted

✓

Answer

Correct option: A.

$A + B^+ \to A^+ + B$

a
${E}_{\text {cell }}^{0}=+ ve$ (spontaneous)

$A=$ oxidised

${B}=$ Reduced

$A+B^{+} \rightarrow A^{+}+B$ ;

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