When compound X is oxidised by acidified potassium dichromate, compound Y id formed. Compound Y on reduction with $LiA | H_4$ gives X.X and Y respectively are :

Question

\[\begin {array} {1 1} (a)\;C_2H_5OH,CH_3COOH & \quad (b)\;CH_3COCH_3,CH_3COOH \\ (c)\;C_2H_5OH,CH_3COCH_3 & \quad (d)\;CH_3CHO,CH_3COCH_3 \end {array}\]