if any two compounds happen to show tautomerism, ring chain isomerism, functional isomerism, metamerism, chain isomerism as well as position isomerism, what priority order do we follow to assign them a single type of structural isomerism.
in one of the resources I got the order:
ring chain > tautomerism > functional isomerism > metamerism > chain isomerism > positional isomerism
whereas at other I got :
tautomerism > ring chain > functional isomerism > metamerism > chain isomerism > positional isomerism
so I am confused now to which order I should follow and is there any logic behind these orders?