How many chiral carbon atoms are there in the open-chain form of glucose?

Aug 11, 2015

There are four chiral carbon atoms in the open-chain form of glucose.

Explanation:

The structure of glucose with its numbering is

There are no internal mirror planes, so every carbon atom is different.

The four chiral centres (with their attached groups) are:

1. $\text{C2 (OH,C1, C3, H)}$
2. $\text{C3 (OH, C2, C4, H)}$
3. $\text{C4 (OH, C3, C5, H)}$
4. $\text{C5 (OH, C4, C6, H)}$