Answer:
Ketone.
Explanation:
Disiamylborane is used for hydroboration of an alkene or alkyne.
An alkene hydroboration gives an alcohol and an alkyne gives carbonyl compound.
A terminal alkyne gives aldehyde while a non terminal alkyne gives ketone or hydroboration.
The role of hydrogen peroxide is that it results in oxidative hydroboration and hydroboration can also be reductive if we use Zinc.
