Assertion : Butane and 2-methylbutane are homologues. Reason : Butane is a straight chain alkene while 2-methylbutane is a branched chain alkene.

Assertion : Butane and 2-methylbutane are homologues. Reason : Butane

1.	Assertion : Butane and 2-methylbutane are homologues. Reason : Butane is a straight chain alkene while 2-methylbutane is a branched chain alkene.
Answer» If both ASSERTION and REASON are correct and reason is correct explanation for assertion. If both assertion and reason are correct but reason is not correct explanation for assertion. If assertion is correct but reason is incorrect. If both assertion and reason are incorrect. Solution :Correct explanation : The TWO differ in their MOLECULAR formula by `-CH_(2)` group.