Question

The d-form is also known as ____________

(a) rotatory

(b) laevorotatory

(c) dextrorotatory

(d) l-form

This question was addressed to me during an interview.

My query is from Organic Chemistry in section Organic Chemistry – Basic Principles and Technique of Chemistry – Class 11

Answer 1

The correct choice is (c) dextrorotatory

For explanation I would say: The isomer which rotates the plane of polarized light towards the right that is clockwise, is known as a dextrorotatory or d form while that which rotates towards the left that is anti-clockwise, is known as laevorotatory or l-form.