I. CH_(3)-CH_(2)-CH_(2)-CH_(2)-overset(O)overset(||)(C)-H II. CH_(3)-CH_(2)-CH_(2)-overset(O)overset(||)(C)-CH_(3) III. CH_(3)-CH_(2)-underset(O)underset(||)(C)-CH_(2)-CH_(3) IV. {:(CH_(3)-CH-CH_(2)-C-H),("|""||"),(""CH_(3)""O):} Which of the following are not functional group isomers ?

I. CH_(3)-CH_(2)-CH_(2)-CH_(2)-overset(O)overset(||)(C)-H II. CH_(3)-

1.	I. CH_(3)-CH_(2)-CH_(2)-CH_(2)-overset(O)overset(\|\|)(C)-H II. CH_(3)-CH_(2)-CH_(2)-overset(O)overset(\|\|)(C)-CH_(3) III. CH_(3)-CH_(2)-underset(O)underset(\|\|)(C)-CH_(2)-CH_(3) IV. {:(CH_(3)-CH-CH_(2)-C-H),("\|""\|\|"),(""CH_(3)""O):} Which of the following are not functional group isomers ?
Answer» II and III II and IV I and IV I and II Solution :II and III, I and IV are not functional group ISOMERS, i.e., options (a) and (c) are CORRECT.