7.Write the balanced reactions with the names of the products main: a) Reduction of ethyl p-nitrobenzoate and o-nitroacetanilide, using in both cases hydrogen as reducing agent and platinum as catalyst. b) Benzyl chloride + ammonia, then treat with methyl chloride. c) 2; 4-dinitrochlorobenzene + methylamine. d) Isobutyraldphehyde + aniline in NaBH3CN.