MCQ
The maximum covalency of a non-metallic group 15 element 'E' with weakest $E - E$ bond is :
- A5
- B3
- C6
- ✓4
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$A$ and $B$ are :
$\begin{array}{*{20}{c}}
{{C_6}{H_5} - C - H} \\
{\,\,\,\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,O}
\end{array}\xrightarrow{{N{H_2}OH/{H^ \oplus }}}[X]$
$[X] $ will be :