Which compound is produced when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₆H₁₂CHOH
B C₆H₁₂CHO
C C₇H₈O₂
D C₈H₁₀(OH)₂ - 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 C₆H₁₂CHOH
B C₆H₁₂CHO
C C₇H₈O₂
D C₈H₁₀(OH)₂
Worked Solution & Example Answer:Which compound is produced when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₆H₁₂CHOH
B C₆H₁₂CHO
C C₇H₈O₂
D C₈H₁₀(OH)₂ - AQA - A-Level Chemistry - Question 26 - 2021 - Paper 3
Step 1
Identify the reaction with 1-phenylethanol
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Answer
When 1-phenylethanol, which is a primary alcohol, reacts with acidified potassium dichromate(VI), it undergoes oxidation. The oxidizing agent (potassium dichromate) will convert the primary alcohol to an aldehyde.
Step 2
Determine the product formed
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Answer
The product formed from the oxidation of 1-phenylethanol is phenylacetaldehyde, with the molecular formula C₇H₈O₂.
Step 3
Select the correct answer option
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Answer
Based on the provided options, C C₇H₈O₂ is the correct answer as it represents phenylacetaldehyde.
