Identify Z in the following reaction sequence | vedclass

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(D) Step $1$: $(CH_3)_2CH-OH + PBr_3 \rightarrow (CH_3)_2CH-Br$ ($X$ is isopropyl bromide).Step $2$: $(CH_3)_2CH-Br + alc. KOH \rightarrow CH_3-CH=CH_

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None of the above

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(D) Step $1$: $(CH_3)_2CH-OH + PBr_3 \rightarrow (CH_3)_2CH-Br$ ($X$ is isopropyl bromide).Step $2$: $(CH_3)_2CH-Br + alc. KOH \rightarrow CH_3-CH=CH_2$ ($Y$ is propene).Step $3$: $CH_3-CH=CH_2 + (i) H_2SO_4 / (ii) H_3O^+ \rightarrow CH_3-CH(OH)-CH_3$ (Isopropyl alcohol or propan-$2$-ol).Since $CH_3-CH(OH)-CH_3$ is not among the given options,the correct answer is $D$.

Identify $Z$ in the following reaction sequence:
$(CH_3)_2CH-OH$ $\xrightarrow{PBr_3} X$ $\xrightarrow{alc. KOH} Y$ $\xrightarrow[(ii) H_3O^+]{(i) H_2SO_4} Z$

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Identify $Z$ in the following reaction sequence:$(CH_3)_2CH-OH$ $\xrightarrow{PBr_3} X$ $\xrightarrow{alc. KOH} Y$ $\xrightarrow[(ii) H_3O^+]{(i) H_2SO_4} Z$