D-Glucose is converted to n-hexane by Reagent X, to saccharic acid by Reagent Y, and to gluconic acid by Reagent Z. The correct set of reagents X, Y, and Z respectively are:

Step-by-step solution

D-Glucose on prolonged heating with HI forms n-hexane, suggesting that all the six carbon atoms are linked in a straight chain. Thus, Reagent X is HI / . On oxidation with nitric acid, both the terminal aldehyde and primary alcohol groups of glucose are oxidized to carboxylic acid groups, forming saccharic acid. Thus, Reagent Y is conc. HNO ₃ . Bromine water is a mild oxidizing agent that selectively oxidizes the aldehyde group of glucose to a carboxylic acid group, yielding gluconic acid. Thus, Reagent Z is Bromin