When $D^{-}$-glucose is treated with $Br_2$ water,the product is:

The specific rotations of $\alpha-$ and $\beta-$ glucose are different. When either is dissolved in water,their rotation changes until a constant value is reached. This phenomenon is called ......

The total number of hydroxyl $(-OH)$ groups in saccharic acid is:

Which of the following cannot be used to distinguish between glucose and fructose?

The correct corresponding names of the four aldoses with the configurations given below,respectively,are:

The value of $n$ in the formula $(C_5H_{10}O_5)_n$ for inulin is about