MCQ
Which of the following compounds is the weakest Brönsted base?
- A

- ✓

- C

- D







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$\begin{array}{|l|l|} \hline List\,\,I & List\,\,II \\ \hline (A)\,\,Peroxide & (1)\,\,{C_3}{O_2} \\ \hline (B)\,\,Superoxide & (2)\,\,Pb{O_2} \\ \hline (C)\,\,Dioxide & (3)\,\,K{O_2} \\ \hline (D)\,\,Suboxide & (4)\,\,{H_2}{O_2} \\ \hline \end{array}$
$Ni ( s )+2 Ag ^{+}(0.001 M ) \rightarrow Ni ^{2+}(0.001 M )+2 Ag ( s )$
$($ Given that $E _{\text {cell }}^{\circ}=10.5 \,V , \frac{2.303 RT }{ F }=0.059$ at $298\, K )$
$CH_3CH_2OH$ $\xrightarrow{{P + {I_2}}}A\xrightarrow[{{\text{dry ether}}}]{{Mg}}B\xrightarrow{{HCHO}}C\xrightarrow{{{H_2}O}}D$ the compound $D$ is