Chemistry - STEREO ISOMERISM Question with Solution | TestHub
Assertion :- D-configuration means rotate PPL in clockwise.
Reason :- Molecule will be dextrorotatory.
Options:
Answer:
Solution:
Question Explanation:
The question tests the relationship between D/L configuration and optical rotation
(dextrorotatory/levorotatory).
Concept:
D–L Configuration, Optical Activity, Plane Polarized Light (PPL).
Solution:
Assertion: (False)
“D-configuration means to rotate plane polarized light in a clockwise direction.”
D/L configuration is assigned based on the relative configuration with respect to glyceraldehyde,
not on the direction of rotation of plane polarized light.
Reason: (False)
“Molecule will be dextrorotatory.”
A molecule with D-configuration may be dextrorotatory (+) or levorotatory (–).
There is no fixed correlation between D/L notation and optical rotation.
Final Answer: Option (D)