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Which of the following alkaline earth metals is an essential structural constituent of chlorophyll, s Block Elements Chemistry Question

Question

Which of the following alkaline earth metals is an essential structural constituent of chlorophyll, the green coloring pigment responsible for capturing light energy in plants?

Answer: B

💡 Solution & Explanation

Magnesium ($Mg$) is the central atom perfectly coordinated within the porphyrin ring of the chlorophyll molecule, making it absolutely essential for the process of photosynthesis in plants.

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