
- A$HNO _{2}, Fe / H ^{+}, HNO _{2}, KI , H _{2} O / H ^{+}$
- ✓$HNO _{2}, KI , Fe / H ^{+}, HNO _{2}, H _{2} O /$ warm
- C$HNO _{2}, KI , HNO _{2}, Fe / H ^{+}, H _{2} O / H ^{+}$
- D$HNO _{2}, Fe / H ^{+}, KI , HNO _{2}, H _{2} O /$ warm


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List $I$ Complex | List $II$ $CFSE(\Delta_0)$ |
| $A$ $\left[ Cu \left( NH _3\right)_6\right]^{2+}$ | $I$ $-0.6$ |
| $B$ $\left[\operatorname{Ti}\left( N _2 O \right)_6\right]^{3+}$ | $II$ $-2.0$ |
| $C$ $\left[ Fe ( CN )_6\right]^{3-}$ | $III$ $-1.2$ |
| $D$ $\left[ NiF _6\right]^{4-}$ | $IV$ $-0.4$ |
Choose the correct answer from the options given below:
$(I)$ $\begin{matrix}
\begin{matrix}
\,\,\,Br \\
| \\
\end{matrix} \\
Ph-C-Ph \\
| \\
\,\,\,\,\,\,C{{H}_{3}} \\
\end{matrix}$
$(II)$ $\begin{matrix}
Br \\
|\,\,\, \\
Ph-CH-Ph \\
\end{matrix}$
$(III)$ $\begin{matrix}
Ph-CH-C{{H}_{3}} \\
|\,\,\,\,\,\,\, \\
Br\,\,\,\,\,\, \\
\end{matrix}$
$(IV)$ $PhVH_2Br$
$\mathop {\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{COOH\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{H - C - OH\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}} \\
{Br - C - H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,\,COOC{H_3}}
\end{array}}\limits_{(I)} $ $\mathop {\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,COOC{H_3}\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{H - C - Br\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}} \\
{HO - C - H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,\,\,\,\,\,COOH\,\,\,\,\,\,\,\,}
\end{array}}\limits_{(II)} $
