The solubility of water decreases rapidly with the increase in the size of ------------ groups attached to carbonyl group.

alkyl

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aryl

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phenyl

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benzyl

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Solution

The correct option is A alkyl
As the size of the Alkyl group increases the solubility decreases rapidly due to increase in the magnitude of a non-polar part in the molecule. Lower members of aldehydes and ketones are miscible with water because they form hydrogen bonds with water. But both aldehydes and ketones are freely soluble in organic solvents.

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