What are the hydrolysis products of lactose?

What happens when $\mathrm{D}$-glucose is treated with the following reagent?

$\mathrm{H}\mathrm{I}$.

What happens when $\mathrm{D}$-glucose is treated with the following reagent?

Bromine water.

What happens when $\mathrm{D}$-glucose is treated with the following reagent?

${\mathrm{HNO}}_3$.

Define the following as related to proteins.
Primary structure