Given below are two statements :- Statement I : The boiling…

Physics JEE Main Full Syllabus Mock Test 75 Question New Syllabus TEST 4 PCM MCQ (Single Correct)

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 -bonding.

In the light of the statements, choose the most appropriate answer from the options given below:

Both statements I and statement II are incorrect.

Statement I is correct but statement II is incorrect.

Statement I is incorrect but statement II is correct.

Both statement I and statement II are correct.

Text Solution

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The correct answer is:

Due to hydrogen bonding in alcohol and non-polar nature of alkane, the boiling point of aldehydes and ketones are in-between of these two.

B.P. order:

Alcohol Aldehyde/Ketone Alkane

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