The alkaline earth metal ion present in chlorophyll is among the metal

Options

A. Ca
B. Mg
C. Be
D. Ba

Answer

To solve the question regarding the alkaline earth metal ion present in chlorophyll, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of Chlorophyll**:
- Chlorophyll is a complex molecule that plays a crucial role in photosynthesis. It contains a porphyrin ring structure.

2. **Determine the Central Metal Ion**:
- In the structure of chlorophyll, there is a central metal ion that is coordinated by nitrogen atoms from the porphyrin ring.

3. **Identify the Metal Ion**:
- The metal ion that is commonly found in chlorophyll is Magnesium (Mg). It is an alkaline earth metal.

4. **Confirm the Role of Magnesium**:
- Magnesium acts as the central atom in the chlorophyll molecule, surrounded by nitrogen atoms that coordinate with it through their lone pairs.

5. **Conclusion**:
- Therefore, the alkaline earth metal ion present in chlorophyll is Magnesium (Mg).

### Final Answer:
The alkaline earth metal ion present in chlorophyll is Magnesium (Mg).

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