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Given that the standard reduction potentials for \( \mathrm{M}^{+} / \mathrm{M} \) and \( \mathrm{N}^{+} / \mathrm{N} \) electrodes at \( 298 \mathrm{~K} \) are \( 0.52 \mathrm{~V} \) and \( 0.25 \mathrm{~V} \) respectively. Which of the following is correct in respect of the following electrochemical cell?
\( \mathrm{M} / \mathrm{M}^{+} \| \mathrm{N}^{+} / \mathrm{N} \)
(a) The overall cell reaction is a spontaneous reaction.
(b) The standard EMF of the cell is \( -0.27 \mathrm{~V} \).
(c) The standard EMF of the cell is \( 0.77 \mathrm{~V} \).
(d) The standard EMF of the cell is \( -0.77 \mathrm{~V} \).
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