An optically active isomer of a compound rotated the plane polarised light anti clockwise. Then the isomer is:

dextro isomer

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laevo isomer

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racemic mixture

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none

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Solution

The correct option is B laevo isomer
An optically active alcohol is an alcohol that can rotate the plain of a Plane Polarised Light. Optically active compounds exist in pairs of isomers. One that rotates the plain of PPL to right (clockwise) is called dextro rotatory, while the one that rotates it to left (anti clockwise) is called laevo rotatory isomer.
Hence option B is correct.

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Similar questions

Optical isomers have :

A) property of chirality

B) almost identical chemical properties

C) almost identical physical properties

D) similar rotation of plane polarised light

(C_{5} H_{9} C l)

H_{2}

{C H}_{3} C H B r C H B r C O O H

C H_{3} C H (O H) C O O H

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