Which of the following mixture is known as morter?

Options

A. `CaCO_(3)`, sand and water
B. slaked lime and water
C. `CaCO_(3)` and water
D. slaked lime and water

Answer

To determine which mixture is known as mortar, let's analyze the options provided and understand what mortar is.

### Step-by-Step Solution:

1. **Understanding Mortar**: Mortar is a construction material used to bind bricks, stones, or concrete blocks together. It is typically made from a mixture of sand, a binder (like cement or slake lime), and water.

2. **Analyzing the Options**:
- **Option A**: CaCO3, sand, and water
- **Option B**: Slake lime and water
- **Option C**: CaCO3 and water
- **Option D**: Slake lime and water

3. **Identifying Components of Mortar**:
- Mortar usually consists of sand and a binder. The binder can be cement or slake lime (calcium hydroxide).
- Water is added to create a paste that hardens over time.

4. **Evaluating Each Option**:
- **Option A** (CaCO3, sand, and water): While CaCO3 (calcium carbonate) is a component that can form in the presence of slake lime and CO2, it is not typically a direct component of mortar.
- **Option B** (Slake lime and water): This is a component of mortar, but it lacks sand, which is essential for mortar.
- **Option C** (CaCO3 and water): This does not represent mortar, as it lacks sand and a proper binder.
- **Option D** (Slake lime and water): Similar to option B, it lacks sand.

5. **Conclusion**: The correct mixture that is known as mortar is typically a combination of sand, a binder (like slake lime or cement), and water. However, none of the provided options fully represent the traditional mortar mixture.

Based on the context of the question and the common understanding of mortar, the closest answer would be **Option B** (Slake lime and water), as slake lime is a key component in some types of mortar.

### Final Answer:
**The mixture known as mortar is best represented by Option B: Slake lime and water.**