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Meso Compounds

Which of the ...

Question

Which of the following structure(s) is/are meso-2,3 butanediol?

A

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B

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C

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D

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Solution

The correct option is C
Meso componds are achiral compounds having more than one chiral centres. Meso compounds are bisected by a internal plane of symmetry which causes the optical inactivity of the compound.

$\begin{matrix} B \to 2 R, 3 S C \to 2 R, 3 S \end{matrix}} Both are meso .$

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Similar questions

Q. Which of the following structure(s) is/are meso-2,3 butanediol?

Q. Which of the following structures is/are meso - 2, 3 - butane diol

Q. Among the following, the Newman projections of meso-2,3-butanediol is/are:

C i s

-2-butene gives

m e s o

-2,3-butanediol with dilute alkaline

K M n O_{4}

solution. Reason: Dilute alkaline

K M n O_{4}

solution given trans addition with alkenes.

Q. Assertion :Treatment of cis-

2

-butene with cold,dilute and alkaline

K M n O_{4}

solution gives a meso-

2, 3

-butanediol. Reason:

M n O_{4}^{-}

forms a cyclic intermediate with alkene.

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