Which of the following statement(s) is/are true for SN1 reaction?I. Th...
Rate of SN1 reaction is directly proportional to concentration of alkyl halide but independent of concentration of nucleophile. Non-polar solvents play no role in SN1 reaction.
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Which of the following statement(s) is/are true for SN1 reaction?I. Th...
SN1 reaction is a type of nucleophilic substitution reaction in which the rate-determining step involves the formation of a carbocation intermediate. The following statements are true for SN1 reaction:
I. Concentration of alkyl halide affects the rate of reaction:
In SN1 reaction, the rate-determining step involves the formation of a carbocation intermediate. The rate of this step depends on the concentration of the alkyl halide as it is involved in the formation of the carbocation intermediate. The higher the concentration of the alkyl halide, the faster the rate of reaction.
II. Concentration of nucleophile does not affect the rate of reaction:
In SN1 reaction, the nucleophile attacks the carbocation intermediate formed in the rate-determining step. Since the rate-determining step does not involve the nucleophile, the concentration of the nucleophile does not affect the rate of reaction.
III. Non-polar solvents favor SN1 reactions of alkyl halides:
In SN1 reaction, the carbocation intermediate formed in the rate-determining step is stabilized by polar solvents. Non-polar solvents do not stabilize carbocation intermediates, which leads to the formation of the intermediate more easily. Therefore, non-polar solvents favor SN1 reactions of alkyl halides.
In conclusion, statement I is true for SN1 reaction as the rate of reaction depends on the concentration of alkyl halide. Statement II is false as the concentration of nucleophile does not affect the rate of reaction. Statement III is true as non-polar solvents favor SN1 reactions of alkyl halides.