NEET
Chemistry

Aliphatic Hydrocarbon Physical Properties

Low Priority
Consistency: 15%
Weightage: 3 / 20 Yrs

High-Yield Trend

1
2025
1
2024
1
2011

Questions
3 MCQs

01
PYQ 2011
easy
chemistry ID: neet-201

The linear molecules among the following is:

1. CH3-CC-CH3
2. CH2=CH-CH2-CCH
3. CH3-CH2-CH2-CH3
4. CH3-CH=CH-CH3

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02
PYQ 2024
easy
chemistry ID: neet-202
Given below are two statements :
Statement I: The boiling point of three isomeric pentanes follows the order,
Statement II: When branching increases, the molecule attains the shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.

1. Both Statement I and Statement II are incorrect.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Both Statement I and Statement II are correct.
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03
PYQ 2025
medium
chemistry ID: neet-202
Among the given compounds I-III, the correct order of bond dissociation energy of bond marked with * is:
I II III
1. III > II > I
2. II > III > Iย 
3. II > I > IIIย 
4. I > II > III
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