Question:
Which of the following compounds is obtained when an acetic acid is treated with reagent \(\text{LiAlH}_{4}\)?
Which of the following compounds is obtained when an acetic acid is treated with reagent \(\text{LiAlH}_{4}\)?
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Lithium aluminium hydride reduces a carboxylic acid completely to a primary alcohol.
Updated On: Nov 12, 2026
- Acetaldehyde
- Methane
- Ethyl alcohol
- Methyl alcohol
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
\(\text{LiAlH}_{4}\) is a strong reducing agent. It reduces carboxylic acids to primary alcohols.
Step 2: Write the Reaction
\(\text{CH}_{3}\text{COOH}\xrightarrow{\text{LiAlH}_{4}}\text{CH}_{3}\text{CH}_{2}\text{OH}\).
Step 3: Compare the options
The product has two carbons and is ethyl alcohol, option (C).
Final Answer:
Acetic acid gives ethyl alcohol. \[ \boxed{\text{(C) }\text{Ethyl alcohol}} \]
\(\text{LiAlH}_{4}\) is a strong reducing agent. It reduces carboxylic acids to primary alcohols.
Step 2: Write the Reaction
\(\text{CH}_{3}\text{COOH}\xrightarrow{\text{LiAlH}_{4}}\text{CH}_{3}\text{CH}_{2}\text{OH}\).
Step 3: Compare the options
The product has two carbons and is ethyl alcohol, option (C).
Final Answer:
Acetic acid gives ethyl alcohol. \[ \boxed{\text{(C) }\text{Ethyl alcohol}} \]
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