関連ワード:  explain isomerism with an example    explain isomers with an example    what is isomerism with an example    explain functional isomerism with an example    explain position isomerism with an example    explain ionisation isomerism with an example    explain ionization isomerism with an example    explain chain isomerism with an example    explain linkage isomerism with an example class 12    explain geometrical isomerism with an example