The reagent which forms a crystalline osazone derivative when reacted with glucose is:

Which of the following is a non-reducing sugar?

What is the change in optical rotation with time in a freshly prepared sugar solution called?

On prolonged heating with $HI$,glucose gives a compound '$C$',which can be obtained by Wurtz reaction using sodium metal and compound '$D$'. Identify '$D$'.

Which of the following reagents cannot distinguish between glucose and fructose?

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: