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3h 46m
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Nature of rotation
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This lesson explains how optically active substances can differ in the nature of rotation. It also gives an important relation between the angle of rotation and the concentration of optically active substances. It's an important lesson from exam point of view and a must watch!

Ankita Chowdhury
Student at DTU (Previously DCE); Chemistry lover; Passionate about teaching; @educator.ankita (Instagram) ; Let's make learning fun! :D

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(4)
U
Unacademy user
ma'am can't dextrorotatory and laevorotatory always have same value (20 & -20 respectively ) and if not then why ?????
Ankita Chowdhury
6 months ago
hi Anurag! As you can see in this lesson, it's not always necessary that dextro and laevo rotatory compounds rotate plane polarised light by the same magnitude (like +20 and -20), that is just a practically observed phenomenon, it doesn't have any theoretical reason as such. But what you do need to keep in mind is the two characteristics which make a compound optically active. hope this helps. happy learning :)
Anurag Kumar
6 months ago
Maam are (Disteromer and Enatiomer) and (dextrorotatory and laevorotatory) same. ? As these all are based on angle of rotation. .. Ma'am plz help...
Anurag Kumar
6 months ago
Maam are (Disteromer and Enatiomer) and (dextrorotatory and laevorotatory) same. ? As these all are based on angle of rotation. .. Ma'am plz help...
ma'am can't dextrorotatory and laevorotatory always have same value (20 & -20 respectively ) and if not then why ?????
ma'am can't dextrorotatory and laevorotatory always have same value (20 & -20 respectively ) and if not then why ?????
Ma'am you are the best
Ankita Chowdhury
8 months ago
All the best dear Ratnakar :) happy learning!