Oxidation of secondary alcohol gives

Controlled oxidation of ethyl alcohol gives

Controlled oxidation of primary alcohols give

Controlled oxidation of primary alcohols give

The first oxidation product of secondary alcohol is

On oxidation of an alcohol gives an aldehyde having the same number of carbon atoms as that of alcohol. The alcohol is

On oxidation of an alcohol gives an aldehyde having the same number of carbon atoms as that of alcohol. The alcohol is