What is essentially the difference between - glucose and - glucos… - Vidyadip

Question

What is essentially the difference between $\alpha\ -$ glucose and $\beta\ -$ glucose? What is meant by pyranose structure of glucose?

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Answer

$\alpha\ -$ glucose $\beta\ -$ glucose differ only in the orientation of the hydroxyl group at $C_1$ position.
In $\alpha\ -$ glucose the $\ce{OH}$ group is on right $-$ hand side at $C_1$ position whereas in $\beta\ -$ glucose the $\ce{OH}$ group is on left $-$ hand side at $C_1$ position.
The six $-$ membered hetero cyclic structure of glucose is called pyranose structure.

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