Alkanes

The number of structural isomers for $\ce{C6H14}$ is :

Isomers of hexane, based on their branching, can be divided into three distinct classes as shown in the figure.

The correct order of their boiling point is

The major product obtained in the photo catalysed bromination of 2-methylbutane is :

The maximum number of isomers (including stereoisomers) that are possible on mono-chlorination of the following compound, is

In the Newman projection for 2,2-dimethylbutane, X and Y can respectively be

The number of structural isomers for $\ce{C6H14}$ is