Why is photosynthesis considered a chemical reaction?
Answer and explanation
Correct answer: Because new substances, such as glucose and oxygen, are formed from carbon dioxide and water.
During photosynthesis, carbon dioxide and water are converted into glucose and oxygen in the presence of light and chlorophyll. The formation of new substances is the key feature of a chemical reaction. In contrast, the change of water into water vapour is only a change of state, and no new substance is formed.
Frequently asked questions
What is the correct answer to this question?
Because new substances, such as glucose and oxygen, are formed from carbon dioxide and water.
Why is this the correct answer?
During photosynthesis, carbon dioxide and water are converted into glucose and oxygen in the presence of light and chlorophyll. The formation of new substances is the key feature of a chemical reaction. In contrast, the change of water into water vapour is only a change of state, and no new substance is formed.
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.
