Glucose reacts with phenylhydrazine to form osazone. How many moles of phenylhydrazine are consumed in this reaction?

Glucose and mannose are

Given below are two statements:
Statement $I$: The two cyclic forms of $D-(+)-glucose$ ($\alpha$ and $\beta$ anomers differing at $C1$ hydroxyl orientation) are two anomers of $D-(+)-glucose$.
Statement $II$: The open chain forms of $D-glucose$ and $D-fructose$ contain three similar chiral carbons at $C3$, $C4$, and $C5$.
In the light of the above statements, choose the correct answer from the options given below:

Identify the non-reducing sugar from the following.

How many $-OH$ groups are present in each glucose unit of tri-nitro cellulose?

$ \alpha-D-Glucose $ and $ \beta-D-Glucose $ are: