InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
What is the criteria for optical activity . Give two examples of chiral molecules . |
|
Answer» Optical activity : The property of rotating the plane polarized light by a chemical substance is called optical activity . `to` If the plane polarised light rotates in clock wise direction then it is dextro rotatory [(+) (or) d-forms]. `to` If the plane polarised light rotates in anti-clock wise direction condition then it is laevo rotatory [(-) or l-form] . Crieteria for optical activity : 1) Chirality (or) dissymmetry is the necessary and sufficient condition for a molecule to show optical activity . 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 . Examples of chiral molecules : i) 2-Butanol (ii) 2-Chlorobutane iii) 2-Bromopropanic acid . |
|