Which among the following is found in chlorophyll ?
A
Ca<sup>2+</sup>
B
Mg<sup>2+</sup>
C
Fe<sup>2+</sup>
D
Al<sup>3+</sup>
Correct Answer: Mg<sup>2+</sup>
Chlorophyll is the green pigment found in most plants, which is responsible for light absorption to provide energy by photosynthesis. Chlorophyll contains magnesium ion.