Which of the following molecules is expected to rotate the plane of plane polarized light?


- A1
- B2
- C3
- D4
Solution & Step-by-step Explanation
A molecule rotates the plane of plane polarized light if it is optically active, which requires it to be chiral (no plane of symmetry or center of symmetry).In Glyceraldehyde (), the central carbon is attached to four different groups (), making it a chiral center. Thus, it is optically active.Molecules with a plane of symmetry (like the ones in options B, C, and D) are achiral and therefore optically inactive (meso compounds).