Question

which of the following statements regarding sn2 mechanism is wrong
A.sn2 rxn2 are bimolecular
B.sn2 mechanism occurs in one step
C.sn2 mechanism involves Walden conversion
D.sn2 rectino gives racemic mixture

Answer 1

Answer: D option is wrong.

Explanation:

• $SN_2$ is a bimolecular reaction which means two reactants are present. This reaction follows second order kinetics.
• Its mechanism occurs in one step which means the breaking of bond in the reactant and formation of new bond in the product occurs simultaneously.
• $SN_2$ undergoes walden inversion which means that there is change in configuration of one enantiomer to another enantiomer.
• This reaction leads to the formation of only one type of enantiomer, therefore cannot form any racemic mixture.

The above points accounts that the D option is not true for $SN_2$ reactions.

Answer 2

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$\huge\bold{answer:-}$

option (d) is wrong