Organic Chemistry Basics Result Question 36
36. Identify the correct order of boiling points of the following compounds:
$\mathrm{CH} _3 \mathrm{CH} _2 \mathrm{CH} _2 \mathrm{CH} _2 \mathrm{OH}$ (1)
$\mathrm{CH} _3 \mathrm{CH} _2 \mathrm{CH} _2 \mathrm{CHO}$ (2)
$\mathrm{CH} _3 \mathrm{CH} _2 \mathrm{CH} _2 \mathrm{COOH}$ (3)
(a) $1>2>3$
(b) $3>1>2$
(c) $1>3>2$
(d) $3>2>1$
(2002)
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Answer:
Correct Answer: 36. ( b )
Solution:
- Butanoic acid forms more exhaustive $\mathrm{H}$-bonds than butanol and butanal do not form intermolecular $\mathrm{H}$-bonds. Hence, boiling point order will be $3>1>2$.
BETA
