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) Which of the following set is not example of positional isomerism?

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) Which of the following set is not example of positional isomerism?
Answer» (4) and (5) (2) and (3) (1) and (2) (1) and (3) Solution :N//A