MCQ
What is the correct IUPAC name of


- A4-Ethyl-1-hydroxycyclopent-2-ene
- B1-Ethyl-3-hydroxycyclopent-2-ene
- C1-Ethylcyclopent-2-en-3-ol
- ✓4-Ethylcyclopent-2-en-1-ol


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$B$ will be
${H_2}C = CHC{H_2}Br\xrightarrow{{NaCN}}Y\xrightarrow[{2.\,{H_3}{O^ + }}]{\begin{subarray}{l}
1.{C_6}{H_5}MgBr\, \\
diethylether
\end{subarray} }Z$
$\begin{align}
(A)\,Nu+R-L\to \overset{\oplus }{\mathop{Nu}}\,-R+{{L}^{-}} \\
(B)\,R-{{L}^{\oplus }}\to {{R}^{\oplus }}+:L \\
\end{align}$

$(en = NH_2CH_2CH_2NH_2)$