The change in optical rotation with time of freshly prepared solutions of sugar is known as . . . . . . .

Which of the following derivatives is useful for the identification of reducing sugars?

What are reducing sugars?

Heating glucose with methanol in the presence of dry $HCl$ yields $\alpha$ and $\beta$ methyl glucosides. This indicates the presence of which of the following?

For the complex conversion of $D^{-}$-glucose into the corresponding osazone,the minimum number of equivalents of phenylhydrazine required 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 ......