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Which of the following statements is (are) true of SN2 reactions in general? SN2 reactions can...

Which of the following statements is (are) true of SN2 reactions in general?

SN2 reactions can occur with 1o alkyl halides due to the ability of forming a discrete intermediate.

The rate of reaction depends on the concentration of the nucleophile.

The rate of depends on the concentration of the alkyl halide.

SN2 reactions are concerted reactions when the leaving group does not need to be converted on the substrate.

These types of reactions of alkyl halides are favored by polar protic solvents.

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