Hydroxy aldehydes a and b readily cyclize to form hemiacetals. draw one of the stereoisomers formed in this reaction from both a and b. select why this process gives an optically inactive product mixt

Hydroxy aldehydes a and b readily cyclize to form hemiacetals. draw one of the stereoisomers formed in this reaction from both a and

b. select why this process gives an optically inactive product mixture from a, and an optically active product mixture from

b.