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

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 68%
Level 2: 60%+
AIPMT - 2011
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