Question

why do butane have two name​

Answer 1

Answer:

Butane, or C4H10 , has two structural (also called constitutional) isomers called normal butane, or unbranched butane, and isobutane, or i-butane. ... Notice that isobutane has a propane parent chain with a methyl group - CH3 attached to the second carbon of the chain - that is why its IUPAC name is 2-methylpropane.

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