How Many Chiral Carbons are Present in the Open-Chain Form

Question

How many chiral carbons are present in the open-chain form of an aldohexose?
A) three
B) four
C) five
D) six

Accepted Answer

Aldohexoses have four chiral carbons in their open-chain form. This is because they contain six carbon atoms, with the first being part of the aldehyde group and the last two having a configuration that does not allow for chirality, leaving four carbons that can exhibit chirality.