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Photosynthesis

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  1. Which element is located at the centre of the porphyrin ring in chlorophyll?
    1. Manganese
    2. Calcium
    3. Magnesium
    4. Potassium
Correct Option: C

A non ionic Mg atom is held in the centre of porphyrin (of chlorophyll) held by N atom of pyrrole ring.


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