Title: Conversion of D-Glucose to Alditol and Formation of Optically Inactive Compound from D-Galactose

a. When treated with sodium borohydride, D-glucose is converted into an alditol. Draw the structure of
the alditol. b. When D-galactose is heated in the presence of nitric acid, an optically inactive compound is obtained.
Draw the structure of the product and explain why it is optically inactive.