Considering only monochlorination, how many structural isomers are possible for the product formed when isopentane reacts with $Cl_2$ in presence of UV light?

The dihedral angle between the two C-H bonds on adjacent carbons in the staggered conformation of ethane is:

Octane no. of a fuel can be increased by:

The number of conformation(s) for ethane is/are:

The number of theoretically possible conformations of an alkane is

Which gives only one monosubstitution product on chlorination?

Octane no. of a fuel can be increased by:

In ethane, the dihedral angle between the C-H bonds on adjacent carbon atoms is $0^\circ$ in the _______ conformation and $60^\circ$ in the _______ conformation.

An alkane of mol. weight 72 gives on monochlorination only one product. Name the alkane:

Which of the following is incorrect? The members of the homologous series of alkanes?

Which of the following is NOT an isomer of hexane ($C_6H_{14}$)?