Normality of `2`M sulphuric acid is

Options

A. `2N`
B. `4N`
C. `N//2`
D. `N//4`

Explanation

To find the normality of a 2M sulfuric acid solution, we can follow these steps:

### Step 1: Understand the Definitions
- **Molarity (M)** is defined as the number of moles of solute per liter of solution.
- **Normality (N)** is defined as the number of equivalents of solute per liter of solution.

### Step 2: Identify the Basicity of Sulfuric Acid
Sulfuric acid (H₂SO₄) is a diprotic acid, meaning it can donate two protons (H⁺ ions) per molecule when it dissociates in solution. Therefore, its basicity is 2.

### Step 3: Use the Normality Formula
The formula to calculate normality is:
\[ \text{Normality (N)} = \text{Molarity (M)} \times \text{Basicity} \]

### Step 4: Substitute the Values
Given:
- Molarity (M) = 2M
- Basicity = 2

Substituting the values into the formula:
\[ \text{Normality (N)} = 2M \times 2 = 4N \]

### Step 5: Conclusion
The normality of the 2M sulfuric acid solution is 4N.

### Final Answer
The normality of 2M sulfuric acid is **4N**.

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