i. Metamerism may be defined as a type of isomerism in which different compounds have same molecular formula and the same functional group but have unequal distribution of carbon atoms on either side of the functional group. Such isomers are known as metamers.
ii. e.g. Ether with molecular formula C4H10O has three metamers. They have same functional group as ether but have different distribution of carbon atoms attached to etheral oxygen. These metamers are:
ethoxyethane (Diethyl either)
Methoxypropane (Methyl n-propyl either)
2- Methoxypropane (Isopropyl methyl either)
