Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ?

Question

Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ? (A) -CH3 (B) -OCH3 (C) -COCH3 (D) -CH2OH

Tardigrade Admin · Accepted Answer

Electron withdrawing group stabilises the benzene ring due to delocalisation of charge.

- C H_{3} an d - C H_{2} O H

are electron donating group and hence decrease the stability of benzene ring

- OC H_{3}

is weaker electron withdrawing group than

- COC H_{3} .

Hence

- COC H_{3} .

group more stabilize the phenoxide ion at p-position.

Q. Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ?

$- C H_{3}$

$- OC H_{3}$

$- COC H_{3}$

$- C H_{2} O H$

Q. Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ?

−CH3​

−OCH3​

−COCH3​

−CH2​OH

$- C H_{3}$

$- OC H_{3}$

$- COC H_{3}$

$- C H_{2} O H$