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Meso- and racemic -2,3-dibromobutane on ...

Meso`-` and racemic `-2,3-`dibromobutane on reaction with `Nal` in acetone give `:`

A

`E-`But`-2-`ene and `Z-`But`-2-`ene, respectively

B

`Z-`But`-2-2`ene and `E-`But`-2-`ene, respectively

C

Both give `E-`But `-2-`ene

D

Both give `Z-`But`-2-`ene

Text Solution

Verified by Experts

The correct Answer is:
a
`i.` Meso compound `+` Anti `-` elimination of `Br_(2) rarr `trans or `E-` But `-2-`ene
`ii.` Racemic compound `+` Anti`-` elemination of `Br_(2) rarr cis` or `Z-` But`-2-` ene.
So the anser is `(a)`.
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Knowledge Check

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    B
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