The hydrolysis of (CH3)3C-Br in aqueous acetone follows the SN1 mechanism. Its rate law is

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The hydrolysis of $(CH X_{3}) X_{3} C - Br$ in aqueous acetone follows the SN1 mechanism. Its rate law is

A $rate = k [(CH X_{3}) X_{3} C - Br] [OH X^{-}]$
B $rate = k [(CH X_{3}) X_{3} C - Br]^{2}$
C $rate = k [(CH X_{3}) X_{3} C - Br]$
D $rate = k [OH X^{-}]$

Answer: C

In SN1 the slow step is ionisation of the C-Br bond to give

(CH X_{3}) X_{3} C X^{+}

; the nucleophile enters only after this step. The rate therefore depends on the concentration of the substrate alone, i.e. it is first order overall.

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The hydrolysis of (CHX3​)X3​C−Br in aqueous acetone follows the SN1 mechanism. Its rate law is

Answer: C

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The hydrolysis of $(CH X_{3}) X_{3} C - Br$ in aqueous acetone follows the SN1 mechanism. Its rate law is