Identify (Z) in the above sequence of reactio | vedclass

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(B) The reaction sequence is as follows:$1$. The starting material is but$-1-$ene $(CH_3-CH_2-CH=CH_2)$.$2$. The addition of $HCl$ in the presence of

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$CH_3-CH=CH-CH_3$

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(B) The reaction sequence is as follows:$1$. The starting material is but$-1-$ene $(CH_3-CH_2-CH=CH_2)$.$2$. The addition of $HCl$ in the presence of peroxide is a radical addition. However,$HCl$ does not undergo anti-Markovnikov addition with peroxide because the $H-Cl$ bond is too strong to be cleaved by radicals. Thus,it follows Markovnikov's rule,yielding $2-$chlorobutane $(CH_3-CH_2-CHCl-CH_3)$ as $(A)$.$3$. The reaction of $(A)$ $(CH_3-CH_2-CHCl-CH_3)$ with $EtONa/\Delta$ (a strong base) undergoes an $E2$ elimination reaction.$4$. According to Zaitsev's rule,the more substituted alkene is the major product. Thus,but$-2-$ene $(CH_3-CH=CH-CH_3)$ is formed as the major product $(Z)$.

Identify $(Z)$ in the above sequence of reactions:
$CH_3-CH_2-CH=CH_2$ $\xrightarrow{HCl/\text{peroxide}} (A)$ $\xrightarrow{EtONa/\Delta} (Z) \text{ (major)}$

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Identify $(Z)$ in the above sequence of reactions:$CH_3-CH_2-CH=CH_2$ $\xrightarrow{HCl/\text{peroxide}} (A)$ $\xrightarrow{EtONa/\Delta} (Z) \text{ (major)}$