The two elements responsible for splitting of `H_(2)O` to liberate `O_(2)` during photosynthesis are

Options

A. Mn and Mo
B. Ca and Mg
C. Mn and Cl
D. Mg and Cl.

Explanation

**Step-by-Step Solution:**

1. **Understand the Process of Photosynthesis:**
- Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen.

2. **Identify the Role of Water (H2O):**
- During photosynthesis, water (H2O) is split into hydrogen and oxygen. This process is known as photolysis.

3. **Recognize the Importance of Oxygen:**
- The oxygen produced during the splitting of water is released into the atmosphere, which is essential for the survival of aerobic organisms.

4. **Determine the Elements Involved:**
- The splitting of water molecules requires certain elements that act as catalysts. In this case, two key elements are involved in the process.

5. **Identify the Elements:**
- The two elements responsible for the splitting of water (H2O) to liberate oxygen (O2) during photosynthesis are **manganese (Mn)** and **chlorine (Cl)**.

6. **Classify the Elements:**
- Both manganese and chlorine are classified as micronutrients, which means they are needed in small amounts for the proper functioning of plants.

7. **Conclude the Answer:**
- Therefore, the correct answer to the question is that the two elements responsible for splitting H2O to liberate O2 during photosynthesis are **manganese and chlorine**.

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