Single Choice

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their _________.

Amore extensive association of carboxylic acid via van der Waals force of attraction
Bformation of intramolecular H-bonding
Cformation of intermolecular H-bonding
Correct Answer
Dformation of carboxylate ion

Solution

Carboxylic acids have higher boiling points then aldehydes, ketones, and given alcohol of comparable molecular mass. This is because of formation of intermolecular $$H$$-bonding.

SIMILAR QUESTIONS

Physical World

Which of the following compounds has the highest boiling point?

Physical World

Decreasing order of boiling point of $$I$$ to $$IV$$ follow $$\underset{I}{\text{Methylformate}}$$ $$\underset{II}{\text{Ethylformate}}$$ $$\underset{III}{\text{Iso-propylformate}}$$ $$\underset{IV}{\text{n-Propylformtae}}$$

Physical World

Which of the following has the highest boiling point?

Physical World

An aqueous solution of formic acid cannot be fractionated to get anhydrous acid because:

Physical World

Identify the correct order of boiling points of the given compounds $$(A)$$ $${CH}_{3}{CH}_{2}{CH}_{2}{CH}_{2}OH$$ $$(B)$$ $${CH}_{3}{CH}_{2}{CH}_{2}CHO$$ $$(C)$$ $${CH}_{3}{CH}_{2}COOH$$

Physical World

The boiling point of propionic acid is less than that of n-butyl alcohol, an alcohol of comparable molecular weight.

Physical World

Answer the following questions Give reasons for the following: Carboxylic acids are higher boiling liquids than alcohols.

Physical World

Arrange the following in the increasing order of their boiling pints: $$CH_3-CH_2-CH_2-COOH, CH_3-CH_2-O-CH_2-CH_3, CH_3CH_2CH_2CH_2OH$$

Physical World

Acids have much higher boiling points than isomeric esters because :

Physical World

The boiling points of acetic anhydride (I), propionic anhydride (II) and butyric anhydride (III) follow the order.

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