How do you distinguish the Pentan-2-one and pentan-3-one pairs of compound .

Explanation

Pentan-2-one and Pentan-3-one
On idoform test Pentan-3-One responds whereas Pentan-3-one `(C_(2)H_(5)COC_(2)H_(5))` does not
`underset("Pentan-2-one")(overset(1)CH_(3)-overset(2)CO-overset(3)CH_(2)-overset(4)CH_(2)-overset(5)CH_(3))+3NaOI underset("Heat")overset(NaOH , I_(3))to underset("Yellow ppt.")(CHI_(3)uarr + CH_(3)CH_(2)CH_(2)COONa+2NaOH)`