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Solubility of Alcohols and Phenols as Solvents

Solubility of...

Question

Solubility of alcohols in water is _______ to that of hydrocarbons of comparable molecular masses.

A

greater than

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B

similar

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C

lesser than

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D

none of these

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Solution

The correct option is A greater than
Since alcohols can participate in $H -$ bonding while hydrocarbons cannot, alcohols are able to interact with water molecules more easily than hydrocarbons of comparable molecular masses. Hence alcohols possess greater solubility in water than hydrocarbons of comparable molecular masses.

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Similar questions

Q. Alcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses. Explain this fact.

Q. Explain the following behaviours.
(i) Alcohols are more soluble in water than the hydrocarbons of comparable molecular masses.
(ii) Ortho-nitrophenol is more acidic than ortho-methoxyphenol.

Q. Assertion :Solubility on n-alcohols in water decreases with increase in molecular weight.
Reason: The relative proportion of the hydrocarbon part in alcohols increases with increasing molecular weight which permits enhanced hydrogen bond with water.

Q. Assertion :The solubility of n-alcohol in water decreases with an increase in molecular weight. Reason: The reactive proportion of the hydrocarbon part in alcohols increases with increasing molecular weight which permits enhanced hydrogen bonding with water.

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