Which of the following reagents is used to identify the straight chain of glucose?

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:

Among the following statements about the molecules $X$ and $Y$, which one$(s)$ is/are correct?

Classify the following into monosaccharides and disaccharides:
Ribose,$2-$deoxyribose,maltose,galactose,fructose,and lactose.

Synthesis of each molecule of glucose in photosynthesis involves:

Which of the following carbohydrates has a glycosidic linkage?