Consider the following rate-law statements: I. SN₁ → Rate = k[R–X] II. SN₂ → Rate = k[R–X][Nu⁻] III. SN₁ → Second order IV. SN₂ → First order Which statements are correct?

Verified Answer & Explanation⌄

Correct Answer: A) I and II only

Concept Explanation

SN1 is first order: Rate = k[R–X]. SN2 depends on both the alkyl halide and nucleophile: Rate = k[R–X][Nu⁻]. Thus only statements I and II are correct.

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