- A$107.88$
- B$1.6$
- C$0.8$
- ✓$21.60$
At Anode: $2O{H^ - } \to {H_2}O + \frac{1}{2}{O_2} + 2{e^ - }$
${E_{Ag}} = \frac{{108}}{1} = 108;\,\,{E_{{O_2}}} = \frac{{\frac{1}{2} \times 32}}{2} = 8$
$\frac{{{W_{Ag}}}}{{{E_{Ag}}}} = \frac{{{W_{{O_2}}}}}{{{E_{{O_2}}}}}$; ${W_{Ag}} = \frac{{1.6 \times 108}}{8} = 21.6\,\,gm$.
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Statement $I$: Aniline reacts with con. $\mathrm{H}_2 \mathrm{SO}_4$ followed by heating at $453-473 \mathrm{~K}$ gives $\mathrm{p}$ aminobenzene sulphonic acid, which gives blood red colour in the 'Lassaigne's test'.
Statement $II$: In Friedel - Craft's alkylation and acylation reactions, aniline forms salt with the $\mathrm{AlCl}_3$ catalyst. Due to this, nitrogen of aniline aquires a positive charge and acts as deactivating group.
In the light of the above statements, choose the correct answer from the options given below :