What are the two conditions for a molecule to be optically active?

The compound must contain an asymmetrical carbon atom. The molecule must contain a chiral axis. The molecule must possess a chiral plane.

What is optically active compound class 12?

The optical activity of the compound is the ability of the compound to rotate the plane of polarized light. And optically active compounds are those which rotate the plane of polarized light.

What are the characteristics of optically active compounds?

An optically active compounds exists in two isomeric forms that rotate the plane polarized light in opposite directions. They are called optical isomers and the phenomena is called optical isomerism. Mixture. Optical isomers have the same physical properties: Melting point, boiling point, density etc.

What are the conditions for optical activity of an organic compounds?

Chirality : The object which are non-superimposable on their mirror images are said to be chiral and this property is known as chirality . 2) Asymmetry (absence of symmetry) of the molecule is responsible for the optical activity of organic compounds .

What are the various conditions required for optical activity?

(i) The compound must contain an asymmetrical carbon atom. (ii) The molecule must contain a chiral axis. (iii) The molecule must possess a chiral plane.

How do you know if a molecule is optically active?

The compounds which are capable of optical rotation are said to be optically active compounds. All the chiral compounds are optically active. The chiral compound contains an asymmetric center where the carbon is attached with four different atoms or groups. It forms two non-superimposable mirror images.

What is optically active compound?

A compound capable of optical rotation is said to be optically active. All pure chiral compounds are optically active. eg: (R)-Lactic acid (1) is chiral and rotates the plane of plane-polarized light. Thus, 1 is optically active. see also optically inactive.

What is optical activity 2-chlorobutane?

Example of optical activity 2-chlorobutane is an optically active molecule having molecular formula C4H9Cl. A compound to be said as optically active is only if it has to have an asymmetric chiral carbon centre and a carbon is said to be chiral if the have different substituents attached.

What are the factors on which the optical activity of a substance depends?

The intensity of optical activity is expressed in terms of a quantity, called specific rotation, defined by an equation that relates the angle through which the plane is rotated, the length of the light path through the sample, and the density of the sample (or its concentration if it is present in a solution).

What are the conditions required to exhibit optical activity?

What is the most essential condition of a compound to be optically active in nature?

Most important necessary condition to be optically active compound is ” compound contain asymmetric carbon , they have non-superimposable mirror image . compound rotate either clockwise or anticlockwise direction.”