Which mechanism is favored in the reaction of a tertiary alkyl halide with a str

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Question: Which mechanism is favored in the reaction of a tertiary alkyl halide with a strong nucleophile?

Options:

Correct Answer: S_N1

Solution:

Tertiary alkyl halides favor the S_N1 mechanism due to steric hindrance and the stability of the carbocation.

Which mechanism is favored in the reaction of a tertiary alkyl halide with a strong nucleophile?

Which mechanism is favored in the reaction of a tertiary alkyl halide with a strong nucleophile?

Step 1: Identify the type of alkyl halide. In this case, it is a tertiary alkyl halide, which means it has three carbon atoms attached to the carbon that is bonded to the halide.
Step 2: Understand what a nucleophile is. A strong nucleophile is a species that donates an electron pair to form a bond.
Step 3: Recognize that tertiary alkyl halides are bulky, meaning they have a lot of surrounding groups that make it hard for nucleophiles to attack directly.
Step 4: Learn about the S_N1 mechanism. This mechanism involves two steps: first, the halide leaves, forming a carbocation (a positively charged carbon), and then the nucleophile attacks the carbocation.
Step 5: Realize that the S_N1 mechanism is favored for tertiary alkyl halides because the carbocation formed is stable due to the surrounding carbon groups.
Step 6: Conclude that because of steric hindrance and the stability of the carbocation, the S_N1 mechanism is favored in this reaction.

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