Which element is present at the centre of chlorophyll?

Options

A. Mg
B. Fe
C. Cu
D. K

Answer

**Step-by-Step Solution:**

1. **Understanding Chlorophyll**: Chlorophyll is a green pigment found in plants that plays a crucial role in photosynthesis, allowing plants to absorb light energy.

2. **Structure of Chlorophyll**: Chlorophyll contains a complex structure made up of pyrrole rings and tetrapyrrole rings. These rings are essential for the pigment's ability to absorb light.

3. **Identifying the Central Element**: Within the structure of chlorophyll, there is a central metal ion that is vital for its function.

4. **Determining the Central Element**: The specific metal ion present at the center of the chlorophyll molecule is magnesium (Mg). This ion is crucial for the chlorophyll's ability to capture light energy.

5. **Excluding Other Elements**: Other elements such as iron, copper, and potassium are not found at the center of chlorophyll, confirming that magnesium is the correct answer.

6. **Conclusion**: Therefore, the element present at the center of chlorophyll is magnesium.

**Final Answer**: Magnesium (Mg) is the element present at the center of chlorophyll.

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