What is the correct reason for considering photosynthesis a chemical reaction?
Answer and explanation
Correct answer: Glucose forms from carbon dioxide and water
Photosynthesis is a chemical reaction because reactants are converted into new products. Using light energy and chlorophyll, plants combine carbon dioxide and water to form glucose and release oxygen: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, in simplified form. Option B identifies new-substance formation; leaf shape or evaporation does not establish this reaction.
Frequently asked questions
What is the correct answer to this question?
Glucose forms from carbon dioxide and water
Why is this the correct answer?
Photosynthesis is a chemical reaction because reactants are converted into new products. Using light energy and chlorophyll, plants combine carbon dioxide and water to form glucose and release oxygen: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, in simplified form. Option B identifies new-substance formation; leaf shape or evaporation does not establish this reaction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
