Question

Which of the following statements regarding the $ {{S}_{N}}1 $ reaction shown by alkyl halide is not correct?

• A. The added nucleophile plays no kinetic role in $ {{S}_{N}}1 $ reaction
• B. The $ {{S}_{N}}1 $ reaction involves the inversion of configuration of the optically active substrate
• C. The $ {{S}_{N}}1 $ reaction on the chiral starting material ends up with racemization of the product
• D. The more stable the carbocation intermediate the faster the $ {{S}_{N}}1 $ reaction
• E. Polar protic solvent increases the rate of $ {{S}_{N}}1 $ reaction

Answer 1

Answer: (B)

State (b) is not correct regarding the $ {{S}_{N}}1 $ reaction for alkyl halide because in $ {{S}_{N}}1 $ reaction no inversion takes place. The removal of $ X $ and the attachment of $ O{{H}^{-}} $ will take place from the same side. $ R-X\xrightarrow[{}]{slow}{{R}^{+}}+{{X}^{-}} $ $ {{R}^{+}}+O{{H}^{-}}\xrightarrow[{}]{fast}ROH $