$\mathrm{D}$-Mannose differs from $\mathrm{D}$-glucose in its stereochemistry at $\mathrm{C}-2$. The pyranose form of $\mathrm{D}$-mannose is:

Fructose

The product $\mathrm{A}$ and $\mathrm{B}$ in the a above reaction are:

Which of the following disaccharide will not reduce tollen's reagent?

The structure of $\mathrm{D}$-$\left(+\right)$-glucose is:

The structure of $\mathrm{L}$-$\left(-\right)$-glucose is: