Which compound can be dehydrated to form an alkene?
A CH₃CHO
B CH₃COOH
C CH₃CH₂OH
D CH₃COCH₃ - AQA - A-Level Chemistry - Question 34 - 2022 - Paper 3
Question 34
Which compound can be dehydrated to form an alkene?
A CH₃CHO
B CH₃COOH
C CH₃CH₂OH
D CH₃COCH₃
Worked Solution & Example Answer:Which compound can be dehydrated to form an alkene?
A CH₃CHO
B CH₃COOH
C CH₃CH₂OH
D CH₃COCH₃ - AQA - A-Level Chemistry - Question 34 - 2022 - Paper 3
Step 1
C CH₃CH₂OH
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Answer
Ethanol (CH₃CH₂OH) undergoes dehydration in the presence of an acid catalyst to form ethylene (C₂H₄), which is an alkene. The reaction can be represented as: