${\mathrm{E}}_{\mathrm{Pt},\frac{1}{2}{\mathrm{F}}_2/{\mathrm{F}}^{-}}^0=+2.87\mathrm{V};{\mathrm{E}}_{{\mathrm{Au}}^{+3}/\mathrm{Au}}^0=+1.4\mathrm{V}$

${\mathrm{E}}_{{\mathrm{Fe}}^{+3}/{\mathrm{Fe}}^{+2}}^0=+0.772\mathrm{V};{\mathrm{E}}_{{\mathrm{Cu}}^{+}/\mathrm{Cu}}^{\mathrm{o}}=+0.52\mathrm{V}$

Based on the above data the best oxidant is

• A

  ${\mathrm{F}}_2$

• B

  ${\mathrm{Au}}^{+3}$

• C

  ${\mathrm{Fe}}^{+3}$

• D

  ${\mathrm{Cu}}^{+}$