Is a recamic mixture optically active, if yes why?

Dear shiva kumar,

A racemate is optically inactive because the two isomers rotate plane-polarized light in opposite directions they cancel out, therefore a racemic mixture does not rotate plane-polarized light.

In contrast to the two separate enantiomers, which generally have identical physical properties, a racemate often has different properties compared to either one of the pure enantiomers. Different melting points and solubilities are very common, but different boiling points are also possible.

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No, racemic mixture cannot be optically active.