- A$s{p^3}$
- B$s{p^2}$
- ✓$sp$
- D$s{p^3}d$
| Type | Bond angle |
| $sp^3$ | $109.5^o$ |
| $sp^2$ | $120^o$ |
| $sp^3d$ | $90^o$ and $102^o$ |
| $sp$ | $180^o$ |
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$(i)$ Pure solvent $\to$ separated solvent molecules $\Delta$ $H_1$
$(ii)$ Pure solute $\to$ separated solute molecules$\Delta$ $H_2$
$(iii)$ Separated solvent and solute molecules $\to$ solution $\Delta H_3$ Solution so formed will be ideal if
Reason : The reaction involves syn-addition of bromine.
$\mathop {C{H_2} = CH - Br}\limits_{(I)} $ $\mathop {{\text{C}}{{\text{H}}_3} - Br}\limits_{\left( {II} \right)} $ $\mathop {\begin{array}{*{20}{c}}
{C{H_3} - CH - Br} \\
{|\,\,} \\
{\,\,\,C{H_3}}
\end{array}}\limits_{\left( {III} \right)} $ $\mathop {C{H_3}C{H_2}Br}\limits_{\left( {IV} \right)} $
$C{H_3} - \mathop C\limits^{\mathop {||}\limits^O } - O - C{H_2} - \mathop C\limits^{\mathop {||}\limits^O } - C{H_2} - N{H_2}$