Question

what is the iso butane and n-butane

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Answer 1

Answer:

The term may refer to either of two structural isomers, n-butane or isobutane (also called "methylpropane"), or to a mixture of these isomers. In the IUPAC nomenclature, however, "butane" refers only to the n-butane isomer (which is the isomer with the unbranched structure).

Answer 2

Answer:

Difference between n butane and isobutane is that isobutane (i-butane) is an isomer of normal butane (n-butane).  

In scientific nomenclature, "butane" refers to the n-butane isomer of butane vs the isobutane isomer. Both have 4 carbon and 10 hydrogen atoms but butane is in an unbranched structure whilst isobutane is branched. Butane is a flammable hydrocarbon gas that is liquefied through pressurisation.

iso butane is branched chain and n butane is straight chain

Explanation: