Carboxylic Acids Question 64
Question: Identify the correct order of boiling points of the following compounds $ \underset{(1)}{\mathop{CH_3CH_2CH_2CH_2OH}} $ , $ \underset{(2)}{\mathop{CH_3CH_2CH_2CHO}} $ , $ \underset{(3)}{\mathop{CH_3CH_2CH_2COOH}} $
[IIT-JEE (Screening) 2002]
Options:
A) $ 1>2>3 $
B) $ 3>1>2 $
C) $ 1>3>2 $
D) $ 3>2>1 $
Show Answer
Answer:
Correct Answer: B
Solution:
-COOH and -OH group form the hydrogen bond by which they have high boiling point. -COOH group show strong hydrogen bonding so it form dimer and have more boiling point than -OH group. While -CHO group do not form hydrogen bond. Thus the reactivity order are as 3 > 1 > 2.
BETA
