Question:
An organic compound gives hydrogen on reaction with sodium metal and it also forms an aldehyde having molecular formula \(\text{C}_{2}\text{H}_{4}\text{O}\) on oxidation with pyridinium chlorochromate, identify the organic compound from following ?
An organic compound gives hydrogen on reaction with sodium metal and it also forms an aldehyde having molecular formula \(\text{C}_{2}\text{H}_{4}\text{O}\) on oxidation with pyridinium chlorochromate, identify the organic compound from following ?
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Reaction with sodium shows an acidic hydrogen, and PCC oxidises a primary alcohol to an aldehyde.
Updated On: Nov 12, 2026
- Acetone
- Ethyl alcohol
- Dimethyl ether
- Acetic acid
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Release of hydrogen with sodium shows an -OH group (alcohol or acid).
PCC changes a primary alcohol into an aldehyde without further oxidation.
Step 2: Use the Formula
The aldehyde with formula \(\text{C}_{2}\text{H}_{4}\text{O}\) is acetaldehyde, \(\text{CH}_{3}\text{CHO}\).
Step 3: Find the Parent
\(\text{CH}_{3}\text{CH}_{2}\text{OH}\xrightarrow{\text{PCC}}\text{CH}_{3}\text{CHO}\).
So the compound is ethyl alcohol.
Final Answer:
The compound is ethyl alcohol, option (B). \[ \boxed{\text{(B) }\text{Ethyl alcohol}} \]
Release of hydrogen with sodium shows an -OH group (alcohol or acid).
PCC changes a primary alcohol into an aldehyde without further oxidation.
Step 2: Use the Formula
The aldehyde with formula \(\text{C}_{2}\text{H}_{4}\text{O}\) is acetaldehyde, \(\text{CH}_{3}\text{CHO}\).
Step 3: Find the Parent
\(\text{CH}_{3}\text{CH}_{2}\text{OH}\xrightarrow{\text{PCC}}\text{CH}_{3}\text{CHO}\).
So the compound is ethyl alcohol.
Final Answer:
The compound is ethyl alcohol, option (B). \[ \boxed{\text{(B) }\text{Ethyl alcohol}} \]
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