Which compound is formed when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A - AQA - A-Level Chemistry - Question 22 - 2019 - Paper 3
Question 22
Which compound is formed when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A. C₈H₈CH₂OH
B. C₈H₈CHO
C. C₉H₁₀COCH₃
D. C₉H₁₀COOH
Worked Solution & Example Answer:Which compound is formed when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A - AQA - A-Level Chemistry - Question 22 - 2019 - Paper 3
Step 1
Identify the reaction type
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Answer
When 1-phenylethanol is treated with acidified potassium dichromate(VI), it undergoes oxidation. The potassium dichromate acts as an oxidizing agent, converting the alcohol group into a carbonyl group.
Step 2
Determine the product formed
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Answer
In the case of 1-phenylethanol, oxidation results in the formation of acetophenone (C₈H₈CHO), which is a ketone.
Step 3
Select the correct answer from the options
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Answer
Based on the analysis, the correct compound formed in this reaction is option B: C₈H₈CHO.
