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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Concepts Used:
Alcohols
What is Alcohol?
Alcohol is a derivative of water (H2O) that has one, two, or more hydroxyl groups that are attached to a carbon atom of a hydrocarbon chain (an alkyl group). It is one of the most common organic compounds used in sweeteners, fragrances, and medicine.
Read More: Types of Alcohol
Uses of Alcohol:
- Ethanol is the alcohol used in alcoholic drinks. It can be used as an industrial methylated spirit where methanol is used very little in quantity as it can be dangerous.
- It is used as fuel to produce carbon dioxide and water by the process of fermentation. Whereas methanol burns carbon dioxide and water to facilitate combustion.
- Alcohol is an organic compound used as a solvent that is insoluble in water.
- It can be used to lower the level of sugar.
- Alcohol is used as a preservative in laboratories.