The freezing point of benzene decreases by 0.45⁰C when 0.2 g of acetic acid is added to 20g of benzene. If acetic acid associates to form a dimer in benzene, percentage association of acetic acid in benzene will be: (K_f for benzene = 5.12 K kg mol^–1)

The major product obtained in the following reaction is :

Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution?

Which of the following compounds will form significant amount of meta product during mono-nitration reaction?