CBSE Class 10 Answered

Butane has a formula of C₄H₁₀. It has two isomers. One is a straight chain isomer and the other one is a branched isomer. The straight chain isomer is known as n-Butane or simply Butane. It has the following structure

CH₃-CH₂-CH₂-CH₃

or

The branched isomer of butane is called isobutane. Its IUPAC name is 2-Methylpropane. It has the following structure

CH₃-CH(CH₃)-CH₃

 or

Butene is an alkene with the chemical formula C₄H₈. It has three isomers ^_ 

But-1-ene which has the following structure

H₂C=CH-CH₂-CH₃

But-2-ene which has the following structure

H₃C-CH=CH-CH₃

and isobutene which has the following structure

H₃C-C(CH₃)=CH₂