n -Propyl alcohol on oxidation with potassium dichromate gives an aldehyde which on further oxidation gives an acid. Both aldehyde and acid contain the same number of C atoms as the original alcohol. CH3CH2CH2‌OH‌
25°C
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K2Cr2O7∕H2SO4
CH3CH2‌CHO‌
K2Cr2O7∕H2SO4
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CH3CH2‌COOH Isopropyl alcohol on oxidation gives a ketone with the same number of C atoms as the original alcohol.