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Chapter 8: Q2P. (page 243)

Are (a) D-glucitol, (b) D-galactitol, and (c) D-glycerol optically active?

Short Answer

Expert verified

D-glycerol is optically active. Hence, the correct answer is option (c).

Step by step solution

01

Introduction of optically active substance.

Optically active substances are such compounds which have chiral center and thus show optical rotation when observed through polarimeter.

02

D-glucitol and D-galactitol are optically inactive.

D-glucitol and D-galactitol are optically inactive due to absence of chiral center.

Therefore, the options (a) and (b) are incorrect.

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