What is the term for a molecule that can rotate the plane of polarized light?
Difficulty: Hard
About this MCQ
Hard MCAT item. Correct choice: A. Chiral (optically active) molecule.
- A. Chiral (optically active) molecule ✓
- B. Achiral molecule
Why not B: “Achiral molecule” is not Chiral (optically active) molecule.
- C. Racemic mixture
Why not C: “Racemic mixture” is not Chiral (optically active) molecule.
- D. Meso compound
Why not D: “Meso compound” is not Chiral (optically active) molecule.
Correct answer
A. Chiral (optically active) molecule
Explanation
Chiral (optically active) molecule is the value that answers “What is the term for a molecule that can rotate the plane of polarized light” (option A). Option B (Achiral molecule) is a different value from Chiral (optically active) molecule. Option C (Racemic mixture) is a different value from Chiral (optically active) molecule. Option D (Meso compound) is a different value from Chiral (optically active) molecule. Keep Chiral (optically active) molecule as the MCAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: American Exams, MCAT, Organic Chemistry
Submitted by: MCQsHub Editorial
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