The correct observation in the following reaction is:

Sucrose $\underset{\mathrm{Cleavage} \left(\mathrm{Hydrolysis}\right)}{\overset{\mathrm{Glycosidic} \mathrm{bond}}{\to }} \mathrm{A}+\mathrm{B} \underset{\mathrm{reagent}}{\overset{\mathrm{Seliwanoff}\text{'}\mathrm{s}}{\to }}?$

Seliwanoff's test is used to distinguish between aldose and ketose sugars; when added to a solution containing ketose, red colour is formed rapidly.

Sucrose $\underset{\mathrm{Cleavage} \left(\mathrm{Hydrolysis}\right)}{\overset{\mathrm{Glycosidic} \mathrm{bond}}{\to }} \mathrm{Glucose} +\mathrm{Fructose} \underset{\mathrm{reagent}}{\overset{\mathrm{Seliwanoff}\text{'}\mathrm{s}}{\to }} \mathrm{Red} \mathrm{colour}$