Q52 / 225 · JEE Main 2002 · Chemistry

If $\phi$ denotes reduction potential, then which is true ?

  • Correct answer
    A
    $E_{\text {cell }}^0=\phi_{\text {right }}-\phi_{\text {left }}$
  • B
    $\mathrm{E}_{\text {cell }}^0=\phi_{\text {left }}+\phi_{\text {right }}$
  • C
    $\mathrm{E}_{\text {cell }}^0=\phi_{\text {left }}-\phi_{\text {right }}$
  • D
    $\mathrm{E}_{\text {cell }}^0=-\left(\phi_{\text {left }}+\phi_{\text {right }}\right)$

Solution

$E_{\text {cell }}=E_{\text {right (cathode) }}-E_{\text {left (anode) }}$

Hence, the correct answer is option: 'A'.

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