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Which compound is formed when 1-phenylethanol reacts with acidified potassium dichromate(VI)? A - AQA - A-Level Chemistry - Question 22 - 2019 - Paper 3

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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.

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