Which compound is formed when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₆H₅CH₂CH₂OH
B C₆H₅CH₂CHO
C C₆H₅COCH₃
D C₆H₅CH₂COOH - 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 C₆H₅CH₂CH₂OH
B C₆H₅CH₂CHO
C C₆H₅COCH₃
D C₆H₅CH₂COOH
Worked Solution & Example Answer:Which compound is formed when 1-phenylethanol reacts with acidified potassium dichromate(VI)?
A C₆H₅CH₂CH₂OH
B C₆H₅CH₂CHO
C C₆H₅COCH₃
D C₆H₅CH₂COOH - AQA - A-Level Chemistry - Question 22 - 2019 - Paper 3
Step 1
Identify the Reaction
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
When 1-phenylethanol, which contains a hydroxyl (-OH) group, reacts with acidified potassium dichromate(VI), it undergoes oxidation. The dichromate acts as an oxidizing agent in acidic conditions.
Step 2
Determine the Product
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The oxidation process converts the alcohol group into a ketone or an aldehyde. In this case, the correct product formed by the oxidation of 1-phenylethanol is phenylacetone, represented by the formula C₆H₅COCH₃.
Step 3
Select the Correct Option
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Based on the product of the reaction, the correct answer is C: C₆H₅COCH₃.
