Question

Photolysis of a water molecule yields

• A. 2 electrons and 4 protons
• B. 4 electrons and 4 protons
• C. 4 electrons and 2 protons
• D. 2 electrons and 2 protons

Answer 1

Answer: (D)

2 electrons and 2 protons

Photolysis is part of the light-dependent reactions of photosynthesis. The general reaction of photosynthetic photolysis can be given as

H2AH2A + 2 photons (light) → 2 e−e− + 2 H+H+ + A

So, the correct option is 'Option D'.