Question

in butanone the functional group-ketone should be attached to the third carbon or the second carbon in the chemical structure
pls answer
thanks

Answer 1

Both, because a ketone group occur in the middle of a carbon chain (in-between two alkyl groups).

Answer 2

the bayer villiger oxidation is the oxidative cleavage of a carbon carbon bond adjacent to a carbonyl which converts ketones to esters and cyclic ketones to lectons.