- A$[IF_6]^ -$
- ✓$[ICl_4]^ -$
- C$[ICl_2]^ -$
- D$[BrF_2]^ -$
${[I{F_6}]^ - } \to s{p^3}{d^3}$
${[IC{l_2}]^ - } \to s{p^3}d$
${[Br{F_2}]^ - } \to s{p^3}d$
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Reason : Oxidation takes place at anode and reduction at cathode.

$\operatorname{P} t|{H_{{2_{\left( {2\,atm} \right)}}}}|H_{\left( {0.002\,M} \right)}^ \oplus ||H_{\left( {0.1\,M} \right)}^ \oplus |{H_{{2_{\left( {1\,atm} \right)}}}}|Pt$
$O ^{2-}, N ^{3-}, F ^{-}, Mg ^{2+}, Na ^{+}$ and $Al ^{3+}$ is
${C_6}{H_6}\left( l \right) + \frac{{15}}{2}{O_2}\left( g \right) \longrightarrow 6C{O_2}\left( g \right) + 3{H_2}O\left( l \right)\,;\,\Delta H = - 3271\,kJ$
What is $\Delta U$ for the combustion of $1.5\, mole$ of benzene at $27\,^oC$. .....$ kJ$