Table sugar rotates plane-polarized light to the right. When it is hydrolyzed, a mixture called "invert sugar" forms which is made up of two types of simpler sugars of equal amounts (rotates plane-polarized light to the left). True or False: The simpler sugars must both rotate plane-polarized light to the left. Explain your answer.

• A. True. It is impossible for the two simple sugars to rotate plane-polarized light in opposite directions, as this would give an optically inactive mixture.
• B. True. The two simpler sugars should rotate plane-polarized light to the left for the mixture to rotate plane-polarized light to the left.
• C. False. The two simpler sugars can rotate plane-polarized light in opposite directions as long as one of them rotates the plane-polarized light to the left more than the other.
• D. False. The two simpler sugars can rotate plane-polarized light to the right and produce a mixture that rotates plane-polarized light to the left.

Answer: (C)