Physical Properties of Aldehydes and Ketones
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323941 Arrange the following compounds in decreasing order of their boiling points.
\({\text{C}}{{\text{H}}_3}{\text{CHO}},{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}},{\text{C}}{{\text{H}}_3}{\text{OC}}{{\text{H}}_3},\)\({\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{C}}{{\text{H}}_3}\)

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323935 Assertion :
Boiling point of aldehydes lie in between parent alkanes, and corresponding alcohols.
Reason :
Intermolecular forces of attraction in aldehydes is stronger than that in found in parent alkanes, but weaker than that in alcohols.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323936 Arrange the following compounds in the increasing order of their boiling points.
\(\begin{array}{*{20}{c}}{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{CHO(I)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}\,\,{\rm{(II)}}}\\{{{\rm{H}}_{\rm{5}}}{{\rm{C}}_{\rm{2}}}{\rm{O}}{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}\,\,{\rm{(III)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{(IV)}}}\end{array}\)

1 IV \( < \) I \( < \) II \( < \) III
2 IV \( < \) III \( < \) II \( < \) I
3 IV \( < \) III \( < \) I \( < \) II
4 IV \( < \) II \( < \) III \( < \) I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323937 Given below are two statements :-
Statement I :
The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions.
Statements II :
The boiling points aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the statements, choose the most appropriate answer from the options given below

1 Both statements I and statements II are incorrect.
2 Statement I is correct but statements II is incorrect
3 Statements I is incorrect but statements II is correct.
4 Both statements I and statements II are correct.
NEET - 2022
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323938 Statement A :
The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Statement B :
There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
NEET DIGITAL LIBRARY
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323941 Arrange the following compounds in decreasing order of their boiling points.
\({\text{C}}{{\text{H}}_3}{\text{CHO}},{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}},{\text{C}}{{\text{H}}_3}{\text{OC}}{{\text{H}}_3},\)\({\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{C}}{{\text{H}}_3}\)

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323935 Assertion :
Boiling point of aldehydes lie in between parent alkanes, and corresponding alcohols.
Reason :
Intermolecular forces of attraction in aldehydes is stronger than that in found in parent alkanes, but weaker than that in alcohols.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323936 Arrange the following compounds in the increasing order of their boiling points.
\(\begin{array}{*{20}{c}}{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{CHO(I)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}\,\,{\rm{(II)}}}\\{{{\rm{H}}_{\rm{5}}}{{\rm{C}}_{\rm{2}}}{\rm{O}}{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}\,\,{\rm{(III)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{(IV)}}}\end{array}\)

1 IV \( < \) I \( < \) II \( < \) III
2 IV \( < \) III \( < \) II \( < \) I
3 IV \( < \) III \( < \) I \( < \) II
4 IV \( < \) II \( < \) III \( < \) I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323937 Given below are two statements :-
Statement I :
The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions.
Statements II :
The boiling points aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the statements, choose the most appropriate answer from the options given below

1 Both statements I and statements II are incorrect.
2 Statement I is correct but statements II is incorrect
3 Statements I is incorrect but statements II is correct.
4 Both statements I and statements II are correct.
NEET - 2022
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323938 Statement A :
The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Statement B :
There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323941 Arrange the following compounds in decreasing order of their boiling points.
\({\text{C}}{{\text{H}}_3}{\text{CHO}},{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}},{\text{C}}{{\text{H}}_3}{\text{OC}}{{\text{H}}_3},\)\({\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{C}}{{\text{H}}_3}\)

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323935 Assertion :
Boiling point of aldehydes lie in between parent alkanes, and corresponding alcohols.
Reason :
Intermolecular forces of attraction in aldehydes is stronger than that in found in parent alkanes, but weaker than that in alcohols.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323936 Arrange the following compounds in the increasing order of their boiling points.
\(\begin{array}{*{20}{c}}{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{CHO(I)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}\,\,{\rm{(II)}}}\\{{{\rm{H}}_{\rm{5}}}{{\rm{C}}_{\rm{2}}}{\rm{O}}{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}\,\,{\rm{(III)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{(IV)}}}\end{array}\)

1 IV \( < \) I \( < \) II \( < \) III
2 IV \( < \) III \( < \) II \( < \) I
3 IV \( < \) III \( < \) I \( < \) II
4 IV \( < \) II \( < \) III \( < \) I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323937 Given below are two statements :-
Statement I :
The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions.
Statements II :
The boiling points aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the statements, choose the most appropriate answer from the options given below

1 Both statements I and statements II are incorrect.
2 Statement I is correct but statements II is incorrect
3 Statements I is incorrect but statements II is correct.
4 Both statements I and statements II are correct.
NEET - 2022
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323938 Statement A :
The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Statement B :
There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323941 Arrange the following compounds in decreasing order of their boiling points.
\({\text{C}}{{\text{H}}_3}{\text{CHO}},{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}},{\text{C}}{{\text{H}}_3}{\text{OC}}{{\text{H}}_3},\)\({\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{C}}{{\text{H}}_3}\)

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323935 Assertion :
Boiling point of aldehydes lie in between parent alkanes, and corresponding alcohols.
Reason :
Intermolecular forces of attraction in aldehydes is stronger than that in found in parent alkanes, but weaker than that in alcohols.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323936 Arrange the following compounds in the increasing order of their boiling points.
\(\begin{array}{*{20}{c}}{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{CHO(I)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}\,\,{\rm{(II)}}}\\{{{\rm{H}}_{\rm{5}}}{{\rm{C}}_{\rm{2}}}{\rm{O}}{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}\,\,{\rm{(III)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{(IV)}}}\end{array}\)

1 IV \( < \) I \( < \) II \( < \) III
2 IV \( < \) III \( < \) II \( < \) I
3 IV \( < \) III \( < \) I \( < \) II
4 IV \( < \) II \( < \) III \( < \) I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323937 Given below are two statements :-
Statement I :
The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions.
Statements II :
The boiling points aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the statements, choose the most appropriate answer from the options given below

1 Both statements I and statements II are incorrect.
2 Statement I is correct but statements II is incorrect
3 Statements I is incorrect but statements II is correct.
4 Both statements I and statements II are correct.
NEET - 2022
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323938 Statement A :
The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Statement B :
There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
NEET DIGITAL LIBRARY
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323941 Arrange the following compounds in decreasing order of their boiling points.
\({\text{C}}{{\text{H}}_3}{\text{CHO}},{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}},{\text{C}}{{\text{H}}_3}{\text{OC}}{{\text{H}}_3},\)\({\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{C}}{{\text{H}}_3}\)

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3} < \mathrm{CH}_{3} \mathrm{CHO} < \mathrm{CH}_{3} \mathrm{OCH}_{3} < \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}>\mathrm{CH}_{3} \mathrm{CHO}>\mathrm{CH}_{3} \mathrm{OCH}_{3}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323935 Assertion :
Boiling point of aldehydes lie in between parent alkanes, and corresponding alcohols.
Reason :
Intermolecular forces of attraction in aldehydes is stronger than that in found in parent alkanes, but weaker than that in alcohols.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323936 Arrange the following compounds in the increasing order of their boiling points.
\(\begin{array}{*{20}{c}}{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{CHO(I)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}\,\,{\rm{(II)}}}\\{{{\rm{H}}_{\rm{5}}}{{\rm{C}}_{\rm{2}}}{\rm{O}}{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}\,\,{\rm{(III)}}}&{{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{(IV)}}}\end{array}\)

1 IV \( < \) I \( < \) II \( < \) III
2 IV \( < \) III \( < \) II \( < \) I
3 IV \( < \) III \( < \) I \( < \) II
4 IV \( < \) II \( < \) III \( < \) I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323937 Given below are two statements :-
Statement I :
The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions.
Statements II :
The boiling points aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the statements, choose the most appropriate answer from the options given below

1 Both statements I and statements II are incorrect.
2 Statement I is correct but statements II is incorrect
3 Statements I is incorrect but statements II is correct.
4 Both statements I and statements II are correct.
NEET - 2022
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323938 Statement A :
The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Statement B :
There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.