What is $Z$ in the following sequence of reactions?

What is $Z$ in the following sequence of reactions?

1. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}$
2. $\mathrm{CH}_{3} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}$
3. $\left(\mathrm{CH}_{3} \mathrm{CH}_{2}ight)_{2} \mathrm{CHOH}$
4. $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}_{2}$

Solution

Reagents used in the various steps indicate that the compound $Z$ has an alcoholic group. This set of reactions is possible only when $\mathrm{Z}$ is $\mathrm{CH}_{3} \mathrm{CHOHCH}_{3}$.


In options $a$ and $c, \mathrm{Y}$ cannot be converted back into $\mathrm{d}$ by the given series of reactions.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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