Chemistry, 24.06.2020 23:01 hellicuh

In the mechanism of nucleophilic substitution (SN1 or Sn2), an existing bond breaks and a new bond forms. What is one main difference between the two mechanisms? (A) An SN2 reaction leads to inversion of configuration while an Sy1 reaction gives retention of configuration at a stereogenic carbon. (B) Tertiary butyl halides can react by either mechanism. (C) The timing of bond formation and bond breaking are different in the two mechanisms. on carbocation stability (D) The rate of an SN2 reaction is dependent (E) The rate of an SN1 reaction is independent of the electrophile concentration

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Answer from: 87haymaker

This question is incomplete because one of its options was not written properly.

Complete Question

In the mechanism of nucleophilic substitution (SN1 or Sn2), an existing bond breaks and a new bond forms. What is one main difference between the two mechanisms?

(A) An SN2 reaction leads to inversion of configuration while an Sy1 reaction gives retention of configuration at a stereogenic carbon.

(B) Tertiary butyl halides can react by either mechanism. (C) The timing of bond formation and bond breaking are different in the two mechanisms.

(D) The rate of an SN2 reaction is dependent on carbocation stability

(E) The rate of an SN1 reaction is independent of the electrophile concentration

(A) An SN2 reaction leads to inversion of configuration while an SN1 reaction gives retention of configuration at a stereogenic carbon.

Explanation:

Nucleophilic substitution can be defined as the reaction that occurs between a nucleophile and an electrophile.

In Nucleophilic substitution we have two mechanism of reaction.

a) SN1 mechanism

b) SN2 mechanism.

SN1 mechanism is a two step mechanism. SN1 mechanism is a unimolecular mechanism because it takes place in only one molecule. This mechanism is independent of the concentration of the base or nucleophile used in the reaction. SN1 reaction leads to the retention of configuration at a stereogenic carbon

SN2 mechanism is a mechanism that takes place in only 1 step. SN2 mechanism is a Bimolecular mechanism because it takes place in only two molecules. This mechanism is dependent on the concentration of the base or nucleophile used in the reaction. An SN2 reaction results in the inversion of configuration at a stereogenic carbon.

One main difference between the two mechanisms is that the an SN2 reaction leads to inversion of configuration while an SN1 reaction gives retention of configuration at a stereogenic carbon.

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