Water present in the form of hydrated oxides of Silicon, Aluminium is called _______________

Options

A. Hygroscopic Water
B. Gravitational Water
C. Combined Water
D. Capillary Water

Answer

To solve the question "Water present in the form of hydrated oxides of Silicon, Aluminium is called _______________", we can follow these steps:

### Step 1: Understand the Types of Water in Soil
We need to identify the different types of water present in soil and their characteristics. The options typically include:

1. **Hygroscopic Water**: This water is tightly bound to soil particles and is not available for plant uptake.
2. **Gravitational Water**: This water moves downward due to gravity and is often referred to as heavy water.
3. **Combined Water**: This water is chemically bound with soil particles, such as hydrated oxides of silicon and aluminum.
4. **Capillary Water**: This water is held in the soil's micropores and can be absorbed by plants against gravity.

### Step 2: Identify the Correct Type of Water
From the definitions above, we can see that "combined water" refers to water that is chemically bound to soil particles, including hydrated oxides of silicon and aluminum. This means that it is not readily available for plant use but is part of the soil's structure.

### Step 3: Conclusion
Based on the definitions and characteristics of the types of water, the correct answer to the question is **combined water**.

### Final Answer:
Water present in the form of hydrated oxides of Silicon, Aluminium is called **combined water**.

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