It is a ring structure of six carbon atoms as the name suggests. All the carbon has 2 hydrogens each. the structure is given below
Cyclohexane
(b)- 1-Methyl cyclopentane
It is a ring structure of five carbon atoms and one methyl group is attached to the carbon atom of the ring. The structure is given below:
(c)- 1-Ethyl cyclobutane
It is a ring structure of four carbon atoms and one ethyl group is attached to the carbon atom of the ring. The structure is given below:
(d)- $1-n$ -propyl cyclopropane
It is a ring structure of three carbon atoms and at one of the carbon, a straight three carbon chain is present. The structure is given below:
(e)- 1 -isopropyl cyclopropane
It is a ring structure of three carbon atoms and at one of the carbon a straight chain of three carbon is present and the carbon of the ring is attached to the second carbon of the chain. The structure is given below:
(f)- 1,2 -Dimethyl cyclobutane
It is a ring structure of four carbon atoms and 2 methyl groups are present at the adjacent carbon atom of the ring. The structure is given below:
(g)- 1,3 -Dimethyl cyclobutane
It is a ring structure of four carbon atoms and 2 methyl groups are present at the opposite carbon atom of the ring. The structure is given below:
