The main reduction product of the following compound with NaBH₄ in methanol is :

The increasing order of nitration of the following compounds is :

The correct match between items of List-I and List-II is :

List - I		List - II
(A)	Coloured impurity	(P)	Steam distilation
(B)	Mixture of o-nitrophenol and p-nitrophenol	(Q)	Fractional distilation
(C)	Crude Naphtha	(R)	Charcoal treatment
(d)	Mixture of glycerol and sugars	(S)	Distillation under reduced pressure

Which of the following is the correct structure of Adenosine?