Cycloalkane
Cycloalkanes or cycloalkanes are hydrocarbons in which several carbon atoms are bonded together like a ring and hydrogen is bonded to each carbon atom. The formula is CnH2n. Depending on the number of carbons, it is called cyclopropene, cyclobutane, cyclopentane, and cyclohexane. As in alkane, the substitution reaction is carried out without addition reaction. In the case of small cycloalkane molecules, the ring is unstable because it is prone to break. They are also isomeric to alkenes in the chain of unsaturated hydrocarbons. Representative cycloalkanes include cyclohexane. Cyclohexane is a three-dimensional structure in which all carbon atoms do not exist on the same plane, and it has a shape of a chair and a pear.