The correct answer is (c) 6CO2 + 12H2O + Chlorophyll + Sunlight→ C6H12O6 + 6O2+ 6H2O.
Explanation:
Balanced equation:
This equation correctly represents the balanced chemical reaction of photosynthesis, where six carbon dioxide molecules (CO2) and twelve water molecules (H2O) react in the presence of sunlight and chlorophyll to produce one glucose molecule (C6H12O6) and six oxygen molecules (O2).
Role of chlorophyll:
Chlorophyll is a green pigment found in plant cells that absorbs light energy from the sun, which is necessary for the photosynthesis process to occur.
Why other options are incorrect:
(a):
This equation is incorrect because it has too many water molecules on the reactant side. The correct number of water molecules is 12.
(b):
This equation is incorrect because it omits the crucial role of chlorophyll. Chlorophyll is necessary to absorb sunlight and catalyze the reaction.
(d):
This equation is incorrect because it has carbon dioxide on both the reactant and product sides, which is not chemically possible. In a proper chemical equation, a substance cannot be both a reactant and a product. Additionally, this version also lacks the necessary water molecules on the reactant side.