In 1966, Buckley began hosting Firing Line, a political talk show on National Educational Television, the forerunner of PBS. 1,429 weekly episodes were produced over the next 33 years, until Buckley stepped down in 2000.
Hence, the anion of a ketone, where there are extra alkyl groups is less stable than that of an aldehyde, and so, a ketone is less acidic. In the ester, there is also a resonance donation from the alkoxy group towards the carbonyl that competes with the stabilisation of the enolate charge.
If the reactant under test is an aldehyde, Tollens' test results in a silver mirror. If the reactant is a ketone, it will not react because a ketone cannot be oxidized easily. A ketone has no available hydrogen atom on the carbonyl carbon that can be oxidized-unlike an aldehyde, which has this hydrogen atom.