MCQ
Oxygen shows oxidation state of $-1$ in the compound :
- A$\mathrm{NO}_2$
- B$\mathrm{MnO}_2$
- C$\mathrm{PbO}_2$
- ✓$\mathrm{Na}_2 \mathrm{O}_2$
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$n = 3, l = 1$ and $m = {-1}$
$\mathrm{PbCl}_{2(\mathrm{s})} \rightleftharpoons \mathrm{Pb}_{(\mathrm{ag})}^{2+}+2 \mathrm{Cl}_{(\mathrm{aq})}^{-}$
Which of the following choices is correct for a mixture of $300\; \mathrm{mL}\;\; 0.134 \;\mathrm{M} \;\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}$ and $100\; \mathrm{mL}\;\; 0.4\; \mathrm{M}\; \mathrm{NaCl} ?$
$\begin{array}{*{20}{c}}
{C{H_3} - CH - CH - CH - C{H_3}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,} \\
{OH\,\,\,\,\,\,\,OH\,\,\,\,\,OH\,\,}
\end{array}$