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Identify, X Y and Z in the following syn...

Identify, X Y and Z in the following synthetic scheme and write their structures.
`CH_(3)CH_(2)-C-=C-H underset((ii) CH_(3)CH_(2)Br) overset((i) NaNH_(2)) to X overset(H_(2)//Pd//BaSO_(4)) to Y overset("Alkaline" KMnO_(4)) to Z` Is the compound Z optically active? Justify your answer.

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Verified by Experts

The correct Answer is:
(x)`rarrEt-E-=C-Et`
(Y) `(##ALN_CHM_C09(I)_E01_172_A01##)`
(Z) is meso compound so optically inactive.
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