The reaction of $D$-glucose with ammoniacal $AgNO_3$ produces:

The optical rotation of the $\alpha$-form of a pyranose is $+150.7^{\circ}$,that of the $\beta$-form is $+52.8^{\circ}$. In solution,an equilibrium mixture of these anomers has an optical rotation of $+80.2^{\circ}$. The percentage of the $\alpha$-form in the equilibrium mixture is $....... \%$.

Which reaction proves that all the six carbon atoms are linked in a straight chain in glucose?

Ribose is an example of .........

At which carbon atom do $\alpha-$ and $\beta-$ glucose differ in the configuration of the $-OH$ group?

Anomers of glucose are defined as: