Question

Identify the correct order of boiling points of the following compounds.
$\left(1\right)C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}OH$
$\left(2\right)C{H}_{3}C{H}_{2}C{H}_{2}CHO$
$\left(3\right)C{H}_{3}C{H}_{2}C{H}_{2}COOH$

• A. $1>2>3$
• B. $3>1>2$
• C. $1>3>2$
• D. $3>2>1$

Answer 1

The correct option is B $3>1>2$

Butanoic acid forms far more stronger $H-$ bonds than butanol and butanal does not form intermolecular $H-$bonds. Hence, the boiling point order will be $3>1>2$.