In the reaction `CH_3CH_2CH_2COOH overset(1.LiaiH_4)underset(2.H_2o)rarr` The major organic product formed is

Options

A. `CH_3CH_2CH_2CH_3`
B. `CH_3CH)2C-= CH`
C. `CH_3-CH_2-CH_2-CHO`
D. `CH_3-CH_2-CH_2-CH_2OH`

Answer

To determine the major organic product formed in the reaction of butanoic acid (CH₃CH₂CH₂COOH) with lithium aluminium hydride (LiAlH₄) followed by hydrolysis with water, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
The reactant is butanoic acid (CH₃CH₂CH₂COOH), which contains a carboxylic acid functional group (-COOH).

2. **Understand the Role of LiAlH₄**:
Lithium aluminium hydride (LiAlH₄) is a strong reducing agent. It is capable of reducing carboxylic acids to primary alcohols.

3. **Reduction Reaction**:
When butanoic acid is treated with LiAlH₄, the carboxylic acid group (-COOH) is reduced. The carbonyl (C=O) and hydroxyl (O-H) groups in the carboxylic acid are converted to a single hydroxyl group (-OH), resulting in the formation of a primary alcohol.

4. **Hydrolysis Step**:
After the reduction step, the reaction mixture is treated with water. This step is necessary to quench the reaction and to ensure that the lithium aluminium hydride is fully reacted.

5. **Final Product**:
The final product of this reaction will be butanol (CH₃CH₂CH₂CH₂OH), which is a primary alcohol.

### Conclusion:
The major organic product formed from the reaction of butanoic acid with LiAlH₄ followed by hydrolysis is **butanol (CH₃CH₂CH₂CH₂OH)**.

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