For the method of calculating the degree of unsaturation
D.U of `C_(3)H_(6)O = ((2n_(C ) + 2)-n_(H))/(2) = ((3 xx 2+2)-6)/(2) = 1^(@)`
a. Acyclic isomers
[Here , (4) will show its position and functional isomer with ether.]
5. `underset("Prop-2-en-1-ol")(HO overset(1)(CH_(2)))-overset2CH=overset3CH_(2)`
6. `underset(("Methoxy ethene"))underset("Methyl vinyl ether")(H_(2)C==CH-OMe)`
b.Cyclic isomers
Total number of cyclic and acyclic isomers excluding stereoisomers of `C_(3)H_(6)O` is nine.
