Which compound is formed from bromoethane in a nucleophilic substitution reaction?
A - AQA - A-Level Chemistry - Question 23 - 2022 - Paper 3
Question 23
Which compound is formed from bromoethane in a nucleophilic substitution reaction?
A. CH₃CN
B. CH₃CH₂NH₂
C. CH₂=CH₂
D. CH₃CH₂OSO₃H
Worked Solution & Example Answer:Which compound is formed from bromoethane in a nucleophilic substitution reaction?
A - AQA - A-Level Chemistry - Question 23 - 2022 - Paper 3
Step 1
A. CH₃CN
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Answer
Bromoethane (C₂H₅Br) reacts with a nucleophile. The compound formed in this reaction is determined by the strength and type of nucleophile present. In this case, CH₃CH₂NH₂ (B) acts as a nucleophile and can replace the bromine in bromoethane.
Step 2
B. CH₃CH₂NH₂
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Answer
This is the correct answer, as the reaction of bromoethane with ammonia (the nucleophile represented by CH₃CH₂NH₂) leads to the formation of bromoethane being converted into ethylamine.
Step 3
C. CH₂=CH₂
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Answer
This compound is an alkene and would not be formed in a nucleophilic substitution reaction, as it requires elimination rather than substitution.
Step 4
D. CH₃CH₂OSO₃H
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Answer
While this compound might be formed under different circumstances, it does not directly represent the product formed through the nucleophilic substitution of bromoethane.
