MCQ
Which element is not present in chlorophyll?
  • A
    Carbon
  • Calcium
  • C
    Magnesium
  • D
    Hydrogen

Answer

Correct option: B.
Calcium
In chlorophyll the central ion is magnesium, and the large organic molecule is a porphyrin. The porphyrin contains four nitrogen atoms that form bonds to magnesium in a square planar arrangement. There are several forms of chlorophyll.
So, an element not present in chlorophyll is calcium.

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