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Methylamine reacts with bromoethane by nucleophilic substitution to produce a mixture of products - AQA - A-Level Chemistry - Question 32 - 2021 - Paper 3
Question 32
Methylamine reacts with bromoethane by nucleophilic substitution to produce a mixture of products. Which is not a possible product of this reaction?
Worked Solution & Example Answer:Methylamine reacts with bromoethane by nucleophilic substitution to produce a mixture of products - AQA - A-Level Chemistry - Question 32 - 2021 - Paper 3
Step 1
Which is not a possible product of this reaction?
Answer
To determine which option is not a product of the nucleophilic substitution between methylamine (CH₃NH₂) and bromoethane (C₂H₅Br), we can analyze each option:
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A: C₃H₇NHCH₃ - This option represents a product formed by the addition of methylamine to bromoethane, resulting in a larger alkyl amine.
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B: (C₂H₅)N(CH₃)₂ - This indicates a possible tertiary amine product, which can be formed by the reaction as well.
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C: [(C₂H₅)N(CH₃)₂]⁻ Br⁻ - This suggests a charged species that cannot be directly formed through nucleophilic substitution in the manner described, making this a likely candidate as an incorrect product.
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D: [(C₂H₅)N(CH₃)₂]⁻ Br⁻ - Similar to option C, this represents another charged species that may arise from a different mechanism, but does not directly align with the nucleophilic substitution process discussed.
Based on this analysis, option C, which presents a charged complex rather than a viable product of the substitution reaction, is not a possible product.