Boiling Point of Carboxylic Acids
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Q. Carboxylic acids have higher boiling point than carbonyl compounds and alcohols due to the presence of intramolecular hydrogen bonding.
- True
- False
Q. Identify the correct order of boiling points of the following compounds.
CH3CH2CH2CH2OH, CH3CH2CH2CHO, CH3CH2CH2COOH
(A) (B) (C)
CH3CH2CH2CH2OH, CH3CH2CH2CHO, CH3CH2CH2COOH
(A) (B) (C)
- (A) > (B) > (C)
- (C) > (A) > (B)
- (A) > (C) > (B)
- (C) > (B) > (A)
Q.
Assertion: Carboxylic acids have higher boiling points than alkanes.
Reason: Carboxylic acids are resonance hybrids.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If the assertion and reason both are false.
- If assertion is false but reason is true.
Q. Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their
- More extensive association of carboxylic acid via van der Waals force of attraction.
- Formation of carboxylate ion
- Formation of intramolecular H-bonding
- Formation of intermolecular H-bonding
Q. Identify the correct order of boiling points of the following compounds.
CH3CH2CH2CH2OH, CH3CH2CH2CHO, CH3CH2CH2COOH
(A) (B) (C)
CH3CH2CH2CH2OH, CH3CH2CH2CHO, CH3CH2CH2COOH
(A) (B) (C)
- (A) > (B) > (C)
- (C) > (A) > (B)
- (A) > (C) > (B)
- (C) > (B) > (A)
Q. Identify the correct order of boiling points of the following compounds
CH3CH2(1)CH2CH2OH, CH3CH2CH2CHO(2), CH3CH2CH2COOH(3)
CH3CH2(1)CH2CH2OH, CH3CH2CH2CHO(2), CH3CH2CH2COOH(3)
- 1 > 2 > 3
- 3 > 1 > 2
- 1 > 3 > 2
- 3 > 2 > 1
Q. Identify the correct order of boiling points of the following compounds
CH3CH2(1)CH2CH2OH, CH3CH2CH2CHO(2), CH3CH2CH2COOH(3)
CH3CH2(1)CH2CH2OH, CH3CH2CH2CHO(2), CH3CH2CH2COOH(3)
- 1 > 2 > 3
- 3 > 1 > 2
- 1 > 3 > 2
- 3 > 2 > 1
Q. Carboxylic acids have higher boling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their _________.
- formation of carboxylate ion
- more extensive association of carboxylic acid via van der waals force of attraction
- Formation of strong intermolecular H-bonding than alcohol
- formation of intramolecular H-bonding
Q. Carboxylic acids have higher boiling point than carbonyl compounds and alcohols due to the presence of intramolecular hydrogen bonding.
- True
- False