Molecular formula C_(3)H_(6)O having following structures. (1) CH_(2)=CH-CH_(2)-OH (2) CH_(2)=underset(OH)underset(|)C-CH_(3) (3) underset(OH)underset(|)CH=CH-CH_(3) (4) CH_(3)-CH_(2)-underset(O)underset(||)C-H (5) CH_(3)-underset(O)underset(||)C-CH_(3) (6) CH_(2)=CH-OCH_(3) Find out the incorrect statement.

Molecular formula C_(3)H_(6)O having following structures. (1) CH_(2)

1.	Molecular formula C_(3)H_(6)O having following structures. (1) CH_(2)=CH-CH_(2)-OH (2) CH_(2)=underset(OH)underset(\|)C-CH_(3) (3) underset(OH)underset(\|)CH=CH-CH_(3) (4) CH_(3)-CH_(2)-underset(O)underset(\|\|)C-H (5) CH_(3)-underset(O)underset(\|\|)C-CH_(3) (6) CH_(2)=CH-OCH_(3) Find out the incorrect statement.
Answer» (3) and (4) are TAUTOMERS (4) and (6) are functional isomers (1) and (7) are ring chain isomers (2) and (6) are chain isomers Solution : `HCO PROP(1)/("Stability of alkene")`