Which compound is produced when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₈H₁₀O₁H
B C₈H₁₀CHO
C C₈H₈COCH₃
D C₉H₁₂(OH)(CH₃) - AQA - A-Level Chemistry - Question 26 - 2021 - Paper 3
Question 26
Which compound is produced when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₈H₁₀O₁H
B C₈H₁₀CHO
C C₈H₈COCH₃
D C₉H₁₂(OH)(CH₃)
Worked Solution & Example Answer:Which compound is produced when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₈H₁₀O₁H
B C₈H₁₀CHO
C C₈H₈COCH₃
D C₉H₁₂(OH)(CH₃) - AQA - A-Level Chemistry - Question 26 - 2021 - Paper 3
Step 1
Identify the reactant
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Answer
The reactant is 1-phenylethanol, which is a primary alcohol.
Step 2
Understand the reaction
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Answer
When 1-phenylethanol reacts with acidified potassium dichromate(VI), it undergoes oxidation. Primary alcohols are oxidized to aldehydes.
Step 3
Determine the product
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Answer
The oxidation of 1-phenylethanol produces benzaldehyde (C₆H₅CHO). This corresponds to option B: C₈H₁₀CHO.
