Which Is Optically Inactive?

Optically inactive: A substance which does not have optical activity

, i.e., a substance which does not rotate the plane of plane polarized light.

Which compound is optically inactive?

A compound incapable of optical rotation is said to be optically inactive. All pure achiral compounds are optically inactive. eg: Chloroethane (1) is achiral and does not rotate the plane of plane-polarized light. Thus, 1 is optically inactive.

Which of the following is optically inactive?

2-chloro-2-methylbutane the structure written is as follows, Here, the carbon with an asterisk is attached to two methyl groups which are the same and hence this compound is achiral and is optically inactive.