Question

There is a difference in effect of optical isomers on:

• A. Polarised light
• B. temperature
• C. pressure
• D. heat

Answer 1

The correct option is A Polarised light

Plane polarised light is a light in which the vibrations are aligned in a single plane. When these lights are passed through certain compounds they rotate the plane of Plane Polarised Light at different angles. Some compounds will rotate the plane of Plane Polarised Light in the clockwise direction and some in the anti-clockwise direction. These compounds are called optical active compound.
d-isomer will rotate the plane polarised light in clockwise direction and l-isomer will rotate the plane polarised light in anti-clockwise direction.
Thus, these optical isomers shows different effect only on the rotation of plane polarised light.