The number of stereoisomers of aldoheptose is $a$ and the number of stereoisomers of ketoheptose is $b$. The ratio of $a/b$ is:

What do you understand by the term glycosidic linkage?

Which carbon atom (numbered from $1'$ to $5'$) of ribose lacks the oxygen to form deoxyribose ?

The $\beta$ and $\alpha$ glucose have different specific rotations. When either is dissolved in water,their rotation changes until the same fixed value results. This is called:

The reaction of glucose with $CH_3OH$ in the presence of dry $HCl$ yields methyl glucoside,which indicates the presence of a/an .... in glucose.

Glucose is a