`S_(N)1` reactions are accompanied by racemization in optically active halides.

Give reasons: (i). C-Cl bond length in chlorobenzene is shorter than C-Cl bond length in CH_(3)-Cl (ii). The dipole moment of chlorobenzene is less than of cyclohexyl chloride. (c). S_(N^(1)) reactions are are accompanied by racemisation is optically active alkyl halides.

A racemic mixtrue is optically inactive due to :

Which of the following set of statements regarding the S_N1 reaction shown by alkyl halide is correct here? 1. the S_N1 reaction on the chiral starting material end up with racemization of the product 2. The more stable the carbocation intermediate the faster the S_N1 reaction . 3. The added nucleophile plays no kinetic role in S_N1 reaction 4. The S_N1 reaction involves the inversion of configuration of the optically active substrate

Racemic tartaric acid is optically inactive due to