Structural Isomers of Pentane

Number of acyclic structural isomers of pentene are:

Assertion : Following are the structural isomers of butane. Reason : Structural isomers have the same molecular formula but they differ in their structures.

The maximum number of structural isomers of hexane is

Which of the following are correct structural isomers of butane?

Maximum number of structural isomers for a pentane with molecular formula C_(5)H_(12) is

Draw the structures of isomers of pentane (C_(5)H_(12)) .

Structural Isomerism ( Chain, Position isomers)

Among the following compounds, which is not a structural isomers of others?