The diazonium salts are the reaction products in presence of excess of mineral acid with nitrous acid and

Options

A. Primary aliphatic amine
B. Secondary aromatic amine
C. Primary aromatic amine
D. Tertiary aliphatic amine

Answer

To solve the question regarding the formation of diazonium salts, we need to understand the reaction conditions and the reactants involved. Here’s a step-by-step solution:

### Step 1: Identify the Reactants
The question states that diazonium salts are formed in the presence of excess mineral acid and nitrous acid. We need to identify what type of amine reacts with these reagents to form diazonium salts.

**Hint:** Consider the types of amines and their reactivity with nitrous acid.

### Step 2: Understand the Role of Nitrous Acid
Nitrous acid (HNO2) reacts with amines to form diazonium salts. However, it is important to note that not all amines can form diazonium salts.

**Hint:** Recall the specific conditions under which diazonium salts are formed from amines.

### Step 3: Determine the Type of Amine
Diazonium salts are typically formed from primary aromatic amines. When a primary aromatic amine reacts with nitrous acid in the presence of a mineral acid (like hydrochloric acid), it leads to the formation of the corresponding diazonium salt.

**Hint:** Think about the structure of amines and which ones are classified as primary aromatic amines.

### Step 4: Conclusion
Based on the above understanding, we conclude that the correct answer to the question is that diazonium salts are the reaction products formed from the reaction of nitrous acid with a primary aromatic amine in the presence of excess mineral acid.

**Final Answer:** The correct option is **C) Primary aromatic amine**.