Single Choice

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

A$$(A)> (B)> (C)$$
B$$(C)> (A)> (B)$$
Correct Answer
C$$(A)> (C)> (B)$$
D$$(C)> (B)> (A)$$

Solution

Acid $$(C)$$ forms dimer due to intramolecular $$H$$ bonding
Alcohol $$(A)$$ forms intermolecular H-bonding
H-bonding in $$(C)$$ is stronger than in$$(A)$$
Aldehyde $$(B)$$ has dipole-dipole interaction
So the order of boiling points is $$(C)> (A)> (B)$$

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

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

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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