Electrochemistry Ques 42

42. A hypothetical electrochemical cell is shown below

$A|A^{+}(xM)||B^{+}(yM)| B$

The emfmeasured is $+0.20 V$. The cell reaction is

[2006]

(a) $A^{+}+e^{-} \to A ; B^{+}+e^{-} \to B$

(b) The cell reaction cannot be predicted

(c) $A+B^{+} \to A^{+}+B$

(d) $A^{+}+B \to A+B^{+}$

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Answer:

Correct Answer: 42.(c)

Solution:

(c) The cell reacton is as follows :