MCQ
Which of the following complexes is strongest reducing agent
- ✓$[Co(CN)_6]^{-4}$
- B$[Co(CN)_6]^{-3}$
- C$[Ag(CN)_2]^{-1}$
- D$[Co(CN)_4]^{-3}$
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$C{u_{\left( s \right)}} + 2Ag_{\left( {aq} \right)}^ + \to Cu_{\left( {aq} \right)}^{2 + } + 2A{g_{\left( s \right)}}$
$(a)$ $\begin{array}{*{20}{c}}
{C{H_3} - CH - Br} \\
{|\,\,} \\
{\,\,\,\,\,{C_2}{H_5}\,}
\end{array}$ $(b)$ $\begin{array}{*{20}{c}}
{\,\,Br\,} \\
{|\,} \\
{C{H_3} - C - C{H_3}} \\
{|\,} \\
{\,\,\,\,\,{C_2}{H_5}}
\end{array}$ $(c)$ $\begin{array}{*{20}{c}}
{{C_2}{H_5} - CH - C{H_2}Br} \\
{\,\,|\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_2}{H_5}\,\,}
\end{array}$