Q. Cellulose upon acetylation with excess acetic anhydride/H_{2}SO_{4} (catalytic) gives cellulose triacetate whose structure is

A) [image:14_image16.emf]
B) [image:14_image17.emf]
C) [image:14_image18.emf]
D) [image:14_image19.emf]
Explanation

(a)
Cellulose is a straight chain polysaccharide composed of D-glucose units which are joined by $\beta -$glycosidic linkages between C-1 of one glucose and C-4 of the next glucose. In one unit only three hydroxyl groups are free to form acetate, that’s why called cellulose triacetate.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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