A ketone has the molecular formula C5H10O. Write the structural formulae of the isomers to show positional isomerism?
1 Answer
A ketone has one double bonded oxygen atom, but not at the end of a (sub) chain (or it would be an aldehyde).
Explanation:
Step 1:
Make a straight chain of
Step 2:
Make a chain of 4
Number 3 has but one valence left, so the
So you are left with altogether 3 isomers:
pentan-2-one (or 2-pentanone)
pentan-3-one (or 3-pentanone)
3-methylbutan-2-one. Since the places of the
methylbutanone.