The correct statement about the compounds A a | vedclass

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Question

(A) Compound $A$ is methyl hydrogen tartrate (where the top group is $COOCH_3$ and the bottom is $COOH$).Compound $B$ is also methyl hydrogen tartrate

Vedclass · Accepted Answer

$A$ and $B$ are identical

Vedclass · Answer

(A) Compound $A$ is methyl hydrogen tartrate (where the top group is $COOCH_3$ and the bottom is $COOH$).Compound $B$ is also methyl hydrogen tartrate (where the top group is $COOH$ and the bottom is $COOCH_3$).By rotating compound $B$ by $180^{\circ}$ in the plane of the paper,the $COOH$ group moves to the top and the $COOCH_3$ group moves to the bottom,while the $H$ and $OH$ groups on the chiral carbons remain in their relative positions.After rotation,the structure of $B$ becomes identical to the structure of $A$.Therefore,$A$ and $B$ are identical.

The correct statement about the compounds $A$ and $B$ is:

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