Discussion Forum



1)

When the following aldohexose exists in its D-configuration, the total number of stereoisomers in its pyranose form is

10112021849_k21.PNG


A) 8

B) 7

C) 6

D) 5

Answer:

Option A

Explanation:

The D-from of given sugar is

12112021682_m8.PNG

 

Configurations at the three chiral carbons (starred) can be changed maintaining D-configuration. Hence, the total number of stereoisomers of D-pyranose=$2^{3}=8$