India Exam Junction
14. Which is the only metal present in chlorophyll?
Sodium
Iron
Magnesium
Cobalt
Correct Answer :
Magnesium
Solution
Magnesium is the only metal present in chlorophyll, which is the green pigment found in plants that plays a crucial role in photosynthesis. The magnesium ion at the center of the chlorophyll molecule is essential for capturing light energy and converting it into chemical energy during photosynthesis.