An example of salt formed by a metal and an acid is _______

Options

A. Sodium chloride
B. Calcium sulphate
C. Lithium chloride
D. Sodium chlorate

Explanation

To answer the question, "An example of salt formed by a metal and an acid is _______," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- When a metal reacts with an acid, it produces a salt and hydrogen gas (H₂). The general reaction can be represented as:
\[ \text{Metal} + \text{Acid} \rightarrow \text{Salt} + \text{Hydrogen gas} \]

2. **Identifying Examples**:
- We can consider several metals and their corresponding acids to find examples of salts formed:
- **Sodium (Na)** with **Hydrochloric Acid (HCl)** produces **Sodium Chloride (NaCl)** and hydrogen gas.
- **Calcium (Ca)** with **Sulfuric Acid (H₂SO₄)** produces **Calcium Sulfate (CaSO₄)** and hydrogen gas.
- **Lithium (Li)** with **Hydrochloric Acid (HCl)** produces **Lithium Chloride (LiCl)** and hydrogen gas.

3. **Concluding the Answer**:
- From the examples above, we can conclude that:
- Sodium Chloride (NaCl), Calcium Sulfate (CaSO₄), and Lithium Chloride (LiCl) are all examples of salts formed by the reaction of metals with acids.

4. **Final Answer**:
- An example of salt formed by a metal and an acid is **Sodium Chloride (NaCl)**.