Q. The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
A) Magnesium and Chlorine
B) Manganese and Chlorine
C) Manganese and Potassium
D) Magnesium and Molybdenum
Explanation
[Solution] Photolysis of water by the oxygen-evolving complex of PS II needs $Mn^{2+}$ and $Cl^-$. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.