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Choose the correct option.
The reaction: CH₃Br + OH⁻ → CH₃OH + Br⁻ The expected mechanism of the above reaction is: The above…
The reaction: $\text{CH}_3\text{Br} + \text{OH}^- \rightarrow \text{CH}_3\text{OH} + \text{Br}^-$
(i)[1]
The expected mechanism of the above reaction is:
- (a)SN1 mechanism
- (b)SN2 mechanism
- (c)SE1 mechanism
- (d)SE2 mechanism
(ii)[1]
The above reaction is:
- (a)Elimination reaction
- (b)Nucleophilic addition reaction
- (c)Nucleophilic substitution reaction
- (d)Electrophilic substitution reaction
Answer
Answer (i)
Correct option: (b)
Answer: (b) $\mathrm{S_N2}$ mechanism
Methyl bromide is a primary (methyl) halide with no steric hindrance, so $\mathrm{OH^-}$ attacks from the back in a single step.
Answer (ii)
Correct option: (c)
Answer: (c) Nucleophilic substitution reaction
The nucleophile $\mathrm{OH^-}$ replaces the halogen $\mathrm{Br}$ on the sp$^3$ carbon.