MCQ
Following compound contains how many chiral centres


- ✓$3$
- B$2$
- C$1$
- D$4$


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| List $- I$ Electronic configuration of elements |
List $- II$ $\Delta_{ i }$ in $kJ\, mol-1$ |
| $(a)$ $1 s ^{2} 2 s ^{2}$ | $(i)$ $801$ |
| $(b)$ $1 s ^{2} 2 s ^{2} 2 p ^{4}$ | $(ii)$ $899$ |
| $(c)$ $1 s^{2} 2 s^{2} 2 p^{3}$ | $(iii)$ $1314$ |
| $(d)$ $1 s ^{2} 2 s ^{2} 2 p ^{1}$ | $(iv)$ $1402$ |
Choose the most appropriate answer from the options given below
$\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C = CH}
\end{array}\xrightarrow[{{H_2}O}]{{HgS{O_4},{H_2}S{O_4}}}X$ $\xrightarrow[{(ii)\,conc.{H_2}S{O_4}/\Delta }]{{(i)\,{C_2}{H_5}MgBr,{H_2}O}}Y$
