Which among the following compounds contains | vedclass

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(A) According to the Cahn-Ingold-Prelog $(CIP)$ priority rules,phantom atoms are used to account for multiple bonds (double or triple bonds) by expand

Vedclass · Accepted Answer

$CH_{3}COOH$

Vedclass · Answer

(A) According to the Cahn-Ingold-Prelog $(CIP)$ priority rules,phantom atoms are used to account for multiple bonds (double or triple bonds) by expanding them into single bonds.In $CH_{3}COOH$ (acetic acid),the carbonyl group $(C=O)$ contains a double bond between carbon and oxygen.To assign priorities,the $C=O$ bond is expanded by treating the carbon as bonded to two oxygens (one real,one phantom) and the oxygen as bonded to two carbons (one real,one phantom).Since the other options ($CH_{3}CH_{2}Cl$,$CH_{3}CH_{2}NH_{2}$,and $CH_{3}CH_{2}CH_{2}OH$) contain only single bonds,they do not require the use of phantom atoms for priority assignment.Therefore,$CH_{3}COOH$ is the correct answer.

Which among the following compounds contains a phantom atom in the context of Cahn-Ingold-Prelog $(CIP)$ priority rules?

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