Question

What is the difference between tautomerism and metamerism?

Answer 1

Difference between tautomerism and metamerism

	Tautomerism	Metamerism
Definition	It is a dynamic equilibrium that occurs between two compounds with the same molecular formula that arises due to the 1,3 migration of Hydrogen atoms from one polyvalent atom to another within a molecule.	It occurs because the alkyl chains on either side of the functional group in the molecule are different.
Isomerization process	Tautomerization	Metamerization
Example		${\mathrm{C}}_4{\mathrm{H}}_{10}\mathrm{O}$ represents ethoxyethane $\left({\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{OC}}_2{\mathrm{H}}_5\right)$,and methoxypropane $\left({\mathrm{CH}}_3{\mathrm{OC}}_3{\mathrm{H}}_7\right)$