Answer
The five compounds of formula $C_3H_{6}O$ and the condensed formulae are shown in the picture.
Work Step by Step
Arrange the 3 carbons and one oxygen in five different ways possible. Then add H around the Carbons. Count the H to make sure that they are 6. After drawing the structures, write the condensed formulas corresponding to the structure. By starting on the left write down the elements the way they are connected.