If there is no rotation of plane polarised li | vedclass

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Question

(C) compound that does not rotate plane polarised light is optically inactive. If a compound is thought to be chiral but shows no optical rotation,it

Vedclass · Accepted Answer

the compound may be a racemic mixture

Vedclass · Answer

(C) compound that does not rotate plane polarised light is optically inactive. If a compound is thought to be chiral but shows no optical rotation,it could be a racemic mixture (an equimolar mixture of two enantiomers where the rotation of one is cancelled by the other,i.e.,externally compensated) or it could be a meso compound (which contains chiral centers but is achiral due to an internal plane of symmetry,i.e.,internally compensated). Therefore,the observation of no rotation does not definitively prove the compound is meso; it could also be a racemic mixture.

If there is no rotation of plane polarised light by a compound in a specific solvent,though thought to be chiral,it may mean that

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