Question

Select the odd one from the following:

${\mathrm{CH}}_4,{\mathrm{C}}_3{\mathrm{H}}_8,{\mathrm{C}}_2{\mathrm{H}}_4,{\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{C}}_4{\mathrm{H}}_{10}$

Answer 1

The organic compounds that have only a single bond present in between the Carbon-Carbon $\left(\mathrm{C}-\mathrm{C}\right)$ atoms are called saturated hydrocarbons.

Alkanes have a single bond between the Carbon-Carbon atoms so, they are known as saturated hydrocarbons.

The general formula for alkanes is $\left({\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}\right)$.

Therefore, in the given list, the alkanes are $({\mathrm{CH}}_4,{\mathrm{C}}_3{\mathrm{H}}_8,{\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{C}}_4{\mathrm{H}}_{10})$.

The general formula for alkenes is $\left({\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}\right)$.

The odd one from the given list is Ethene $\left({\mathrm{C}}_2{\mathrm{H}}_4\right)$.

It is an alkene because it follows the general formula of alkenes.