Identify the product obtained in the reaction: Glucose $\xrightarrow{Br_2/H_2O}$ ?

How many secondary hydroxyl groups are present in glucose?

When sugar $X$ is boiled with dilute $H_{2}SO_{4}$ in an alcoholic solution,two isomers $A$ and $B$ are formed. $A$ on oxidation with $HNO_{3}$ yields saccharic acid,whereas $B$ is laevorotatory. The compound $X$ is ....... .

Glycosidic linkage in carbohydrates is called

The 'epimerisation' involves

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