1.

In S_(N)l ( substitution nucleophilie unimolecular) reaction, the racemisation takes place, It is due to

Answer»

inversion of configuration
relention of configuration
both (a) and (b)
NEITHER (a) nor (b)

Solution :In `S_(N)1` mechanism, the INTERMEDIATE FORMED is carbocation. As carbocation is planar thus the incoming nucleophilecan ATTACK from either side. Thus, both retention and inversion takes place RESULTING in racemisation.


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