Question

Select the incorrect reaction among the following:

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The Correct Option is B

The following reactions are analyzed:

1. Reaction (1):

This reaction illustrates the hydrolysis of acetyl chloride, an acyl chloride, yielding acetic acid, a carboxylic acid. This is a typical reaction, as acyl chlorides readily react with water to produce carboxylic acids.

2. Reaction (2):

This reaction shows an incorrect attempt to reduce benzamide to benzoic acid using lithium aluminum hydride (LiAlH₄). LiAlH₄ is a potent reducing agent that converts amides to amines, not carboxylic acids. The expected product is benzylamine.

3. Reaction (3):

 

This reaction depicts the oxidation of ethanol to acetic acid using alkaline potassium permanganate (KMnO₄), followed by acidification. This is a standard oxidation process.

4. Reaction (4):

 

This reaction demonstrates the oxidation of propanol to propanoic acid using a combination of chromium trioxide (CrO₃) and sulfuric acid (H₂SO₄). This is also a standard oxidation reaction.