p -Block elements - ll — Chemistry STD 12 Science — Question

$C$ and $ D$ are

$(b)$ $CoCl _{3} \cdot 5 NH _{3}$

$(c)$ $CoCl _{3} \cdot 6 NH _{3}$ and

$(d)$ $CoCl \left( NO _{3}\right)_{2} \cdot 5 NH _{3}$

Number of complex(es) which will exist in cistrans is/are ....

$STATEMENT-2$: In bromobenzene, the inductive effect of the bromo group is more dominant than the mesomeric effect in directing the incoming electrophile.

$\begin{array}{*{20}{c}}
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3}CHC{H_2}C{H_2}N{H_2}} 
\end{array}$ $\xrightarrow[{triethyla\min e}]{{ethyl\,formate\,\left( {1\,equiv} \right)}}$