323956
Benzoic acid has higher molecular weight in benzene and less in water because
1 water has lower freezing point and higher boiling point than benzene
2 it dissociates to a greater extent in benzene than in water.
3 it associates in water and dissociates in benzene
4 it dissociates in water and associates in benzene.
Explanation:
In water :
In benzene solution :
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323957
Assertion : Carboxylic acids are higher boiling liquids than aldehydes, ketones and even alcohols of comparable molecular masses. Reason : More extensive association of carboxylic acid molecules through intermolecular hydrogen bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct and reason is correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323958
Assertion : Carboxylic acids have higher boiling points than alkanes. Reason : Carboxylic acids are resonance hybrids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carboxylic acids exhibit higher boiling points due to enhanced hydrogen bonding, leading to increased intermolecular forces compared to hydrocarbons of similar size. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323959
Which among the following compounds has highest boiling point?
The order of boiling points of alkanes, amines, alcohols and carboxylic acids of comparable molar mass is as follows: Alkanes \( < \) Amines \( < \) Alcohols \( < \) Carboxylic acids
323956
Benzoic acid has higher molecular weight in benzene and less in water because
1 water has lower freezing point and higher boiling point than benzene
2 it dissociates to a greater extent in benzene than in water.
3 it associates in water and dissociates in benzene
4 it dissociates in water and associates in benzene.
Explanation:
In water :
In benzene solution :
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323957
Assertion : Carboxylic acids are higher boiling liquids than aldehydes, ketones and even alcohols of comparable molecular masses. Reason : More extensive association of carboxylic acid molecules through intermolecular hydrogen bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct and reason is correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323958
Assertion : Carboxylic acids have higher boiling points than alkanes. Reason : Carboxylic acids are resonance hybrids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carboxylic acids exhibit higher boiling points due to enhanced hydrogen bonding, leading to increased intermolecular forces compared to hydrocarbons of similar size. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323959
Which among the following compounds has highest boiling point?
The order of boiling points of alkanes, amines, alcohols and carboxylic acids of comparable molar mass is as follows: Alkanes \( < \) Amines \( < \) Alcohols \( < \) Carboxylic acids
323956
Benzoic acid has higher molecular weight in benzene and less in water because
1 water has lower freezing point and higher boiling point than benzene
2 it dissociates to a greater extent in benzene than in water.
3 it associates in water and dissociates in benzene
4 it dissociates in water and associates in benzene.
Explanation:
In water :
In benzene solution :
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323957
Assertion : Carboxylic acids are higher boiling liquids than aldehydes, ketones and even alcohols of comparable molecular masses. Reason : More extensive association of carboxylic acid molecules through intermolecular hydrogen bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct and reason is correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323958
Assertion : Carboxylic acids have higher boiling points than alkanes. Reason : Carboxylic acids are resonance hybrids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carboxylic acids exhibit higher boiling points due to enhanced hydrogen bonding, leading to increased intermolecular forces compared to hydrocarbons of similar size. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323959
Which among the following compounds has highest boiling point?
The order of boiling points of alkanes, amines, alcohols and carboxylic acids of comparable molar mass is as follows: Alkanes \( < \) Amines \( < \) Alcohols \( < \) Carboxylic acids
323956
Benzoic acid has higher molecular weight in benzene and less in water because
1 water has lower freezing point and higher boiling point than benzene
2 it dissociates to a greater extent in benzene than in water.
3 it associates in water and dissociates in benzene
4 it dissociates in water and associates in benzene.
Explanation:
In water :
In benzene solution :
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323957
Assertion : Carboxylic acids are higher boiling liquids than aldehydes, ketones and even alcohols of comparable molecular masses. Reason : More extensive association of carboxylic acid molecules through intermolecular hydrogen bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct and reason is correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323958
Assertion : Carboxylic acids have higher boiling points than alkanes. Reason : Carboxylic acids are resonance hybrids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carboxylic acids exhibit higher boiling points due to enhanced hydrogen bonding, leading to increased intermolecular forces compared to hydrocarbons of similar size. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323959
Which among the following compounds has highest boiling point?
The order of boiling points of alkanes, amines, alcohols and carboxylic acids of comparable molar mass is as follows: Alkanes \( < \) Amines \( < \) Alcohols \( < \) Carboxylic acids
