Question:
Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ?
Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ?
Updated On: Sep 30, 2024
- $-CH_3$
- $-OCH_3$
- $-COCH_3$
- $-CH_2OH$
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The Correct Option is C
Solution and Explanation
Electron withdrawing group stabilises the benzene ring due to delocalisation of charge.
$-CH_{3} \, and -CH_{2}OH$ are electron donating group and hence decrease the stability of benzene ring $-OCH_{3}$ is weaker electron withdrawing group than $-COCH_{3}.$ Hence $-COCH_{3}.$ group more stabilize the phenoxide ion at p-position.
$-CH_{3} \, and -CH_{2}OH$ are electron donating group and hence decrease the stability of benzene ring $-OCH_{3}$ is weaker electron withdrawing group than $-COCH_{3}.$ Hence $-COCH_{3}.$ group more stabilize the phenoxide ion at p-position.
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