1.

The compound 1-(N-ethyl -N-methyl) propanamine forms non-superimposable mirror images. But this compound does not show optical acitivity because of

Answer»

absence of a chiral N atom
presence of chiral N atom
presence of lone pair on N atom
of RAPID FLIPPING one form inot the other

Solution :
It does not SHOW optical activity because of rapid flipping of one form into the other.


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