Aliphatic nucleophilic substitution is mainly of two type S_(N^(1))" and "S_(N^(2)) . S_(N^(2)) reaction proceed with strong nucleophile in polar aprotic solvent. 3^(@) halides do not give S_(N^(2)) reaction. Inverted products are obtained in this reaction and mechanism of reaction occurs through the formation of transition state. S_(N^(1)) reaction proceed through the formation of carbocation in polar aprotic solvent. Solvent itself acts as nucleophile in this reaction. Racemization takes place in S_(N^(1)) reaction. Which one of the following will give racemised product in C_(2)H_(5)OH?

Aliphatic nucleophilic substitution is mainly of two type S_(N^(1))" a

1.	Aliphatic nucleophilic substitution is mainly of two type S_(N^(1))" and "S_(N^(2)) . S_(N^(2)) reaction proceed with strong nucleophile in polar aprotic solvent. 3^(@) halides do not give S_(N^(2)) reaction. Inverted products are obtained in this reaction and mechanism of reaction occurs through the formation of transition state. S_(N^(1)) reaction proceed through the formation of carbocation in polar aprotic solvent. Solvent itself acts as nucleophile in this reaction. Racemization takes place in S_(N^(1)) reaction. Which one of the following will give racemised product in C_(2)H_(5)OH?
Answer» `H_(3)C-underset(CH_(3))underset(\|)(CH)-BR` `Ph-OVERSET(CH_(3))overset(\|)underset(CH_(3))underset(\|)C-Cl` `Ph-overset(CH_(3))overset(\|)underset(H)underset(\|)C-Cl` Solution :N//A