JEE Main Chemistry question

The chirality of the compound shown (a carbon bearing Br, CH₃, Cl and H, drawn with wedge/dash bonds) is

(A)RCorrect
(B)S
(C)meso
(D)Could not be determined from the given projection

Answer: (A)

Solution

CIP priority order at this carbon is Br > Cl > CH₃ > H; with H (lowest priority) pointing away from the viewer, tracing Br→Cl→CH₃ in the drawn wedge/dash structure gives a clockwise path, so the configuration is R. "meso" (option C) is

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Question ID VK-139861