Question

There is a difference in effect of optical isomer on:
A.Polarized light
B.Temperature
C.Pressure
D.Heat

Answer 1

Hint: Optical isomers of a compound have identical physical and chemical properties. They form non-superimposable mirror images and are also known as enantiomers.

Complete step by step answer:
It is found that some compounds have a tendency to rotate the plane of plane polarized light, that is, when any such compound is placed in the path of plane polarized light, the compound rotates it the plane of the light by a certain angle. This rotation is known as optical rotation and such compounds are known as optically active.
This optical rotation may be clockwise or anti clockwise. The molecules rotating the plane in clockwise direction are termed as dextro-rotatory, while the molecules rotating the plane in anti-clockwise direction are termed as laevo-rotatory. Such compounds are known as optical isomers.
Optical activity is a characteristic of chiral molecules only. We know that a chiral molecule is one that cannot be superimposed on its mirror image. Such a molecule and its non-super imposable mirror image form a pair of enantiomers. Enantiomers rotate the plane of plane polarized light to the same extent but in the opposite direction, that is, one of them is dextrorotatory and the other is laevo rotatory.

The correct option is A.

Note:
Light is an electromagnetic wave, with oscillating electric and magnetic fields. If we were to view a beam of ordinary light from one end, we would observe that the oscillations of the electric field of ordinary light occur in all possible planes, perpendicular to the direction of propagation.
When the light is passed through a polarizer like Nicole prism, the light that emerges from the polarizer is oscillating only in one plane.