23.
The pure • • D Glucose solution in a test-tube was tested for optical rotation of [• ]20D =+112 .20, but after some time it exhibited value of [• ]20D = +52 .70 , this phenomenon is known as
A:
Isomerization
B:
Anomerization
C:
Epimerzation
D:
Mutarotation
The answer is:
D