Question:
What is the final product of the oxidation reaction of a primary alcohol by acidified \(\text{K}_{2}\text{Cr}_{2}\text{O}_{7}\)?
What is the final product of the oxidation reaction of a primary alcohol by acidified \(\text{K}_{2}\text{Cr}_{2}\text{O}_{7}\)?
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A strong oxidising agent carries a primary alcohol past the aldehyde stage to the acid.
Updated On: Nov 12, 2026
- Aldehyde
- ketone
- carboxylic acid
- alkene
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
A primary alcohol is first oxidised to an aldehyde and then further to a carboxylic acid.
Step 2: Role of the Reagent
Acidified \(\text{K}_{2}\text{Cr}_{2}\text{O}_{7}\) is a strong oxidising agent, so the oxidation does not stop at the aldehyde.
Step 3: Write the Sequence
\(\text{RCH}_{2}\text{OH}\rightarrow \text{RCHO}\rightarrow \text{RCOOH}\). The final product is a carboxylic acid, option (C).
Final Answer:
The final product is a carboxylic acid. \[ \boxed{\text{(C) }\text{carboxylic acid}} \]
A primary alcohol is first oxidised to an aldehyde and then further to a carboxylic acid.
Step 2: Role of the Reagent
Acidified \(\text{K}_{2}\text{Cr}_{2}\text{O}_{7}\) is a strong oxidising agent, so the oxidation does not stop at the aldehyde.
Step 3: Write the Sequence
\(\text{RCH}_{2}\text{OH}\rightarrow \text{RCHO}\rightarrow \text{RCOOH}\). The final product is a carboxylic acid, option (C).
Final Answer:
The final product is a carboxylic acid. \[ \boxed{\text{(C) }\text{carboxylic acid}} \]
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