Consider the following The above process in which α and β form remain in equilibrium with acyclic form and a change in optical rotation is observed, is called as-

Step-by-step solution

The above phenomenon is called as mutarotation. Mutarotation is the change in the optical rotation because of the change in the equilibrium between two anomers, when the corresponding stereocenters interconvert. Cyclic sugars show mutarotation as α and β anomeric forms interconvert.