NEETChemistry-Aldehydes, Ketones and Carboxylic Acids

NEET Chemistry Physical Properties Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 12

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. Statement-II : The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H⁻bonding. In the light of the above statements, choose the most appropriate answer from the options given below:

A

Both statement-I and statement-II are correct.

B

Both statement-I and statement-II are incorrect.

C

Statement-I is correct but statement-II is incorrect.

D

Statement-I is incorrect but statement-II is correct.

Correct Answer

Option A

Detailed Explanation

Both statements are correct as aldehydes and ketones have higher boiling points than hydrocarbons due to dipole interactions, but lower than alcohols due to lack of hydrogen bonding.

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