Which of the following is a reducing sugar?

Which of the following compounds forms starch on polymerization?

Which of the following compounds does not exhibit mutarotation?

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 ......

$\alpha - D - (+) -$ glucose and $\beta - D - (+) -$ glucose are:

$\alpha-D-(+)$-glucose and $\beta-D-(+)$-glucose are