On adding water to sodium, the solution formed is

Options

A. neutral
B. alkaline
C. acidic
D. amphoteric

Explanation

To solve the question "On adding water to sodium, the solution formed is?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- We start with sodium (Na), which is a metal.

2. **Understand the Reaction**:
- When sodium reacts with water (H₂O), a chemical reaction occurs. Sodium reacts vigorously with water.

3. **Write the Chemical Equation**:
- The reaction can be represented as:
\[ 2 \text{Na} + 2 \text{H}_2\text{O} \rightarrow 2 \text{NaOH} + \text{H}_2 \]
- This shows that sodium (Na) reacts with water to produce sodium hydroxide (NaOH) and hydrogen gas (H₂).

4. **Identify the Product**:
- The main product of this reaction is sodium hydroxide (NaOH), which is a strong base.

5. **Determine the Nature of the Solution**:
- Sodium hydroxide (NaOH) dissociates completely in water to form sodium ions (Na⁺) and hydroxide ions (OH⁻):
\[ \text{NaOH} \rightarrow \text{Na}^+ + \text{OH}^- \]
- The presence of hydroxide ions (OH⁻) indicates that the solution is basic.

6. **Conclude the Type of Solution**:
- Since the concentration of hydroxide ions (OH⁻) is greater than that of hydrogen ions (H⁺) in the solution, the solution is classified as an alkaline solution.

7. **Final Answer**:
- Therefore, the solution formed when water is added to sodium is an **alkaline solution**.