Question

Complete the following chemical reaction for splitting of water during
Photosynthesis.
2H20 ------>

Answer 1

Answer:

Water splitting is the chemical reaction in which water is broken down into oxygen and hydrogen: 2 H2O → 2 H2 + O.

Answer 2

Answer:

The chemical reaction for splitting of water during photosynthesis can be represented as:

2$H_{2}O$ → 4H+ + 4e- + $O_{2}$

Explanation:

The splitting of water molecules during photosynthesis is called photolysis or photooxidation. It takes place in the water-splitting complex of photosystem II in presence of light wherein the water molecules split to form oxygen, electrons, and hydrogen. This process takes place in the thylakoid membrane of the chloroplast.

In this process, oxygen is released into the atmosphere as a waste product, and electrons (e-) are obtained to replace those lost through photoexcitation of chlorophyll a in the active center of photosystem II, causing noncyclic photophosphorylation to begin.