CBSE Class 7 Answered
How would you prove that breaking down of ozone layer and the process of photosynthesis are Chemical changes
Asked by Nimmi | 09 Nov, 2018, 03:32: PM
Expert Answer
Breaking down of the ozone layer is a chemical change.
The chemical equation for the destruction of the ozone layer is;
O3 + Cl → ClO + O2
In this process, the new substance that is oxygen is formed from original substance, ozone.
So the destruction of ozone is a chemical change.
Photosynthesis is a chemical change.
During photosynthesis, water and carbon dioxide reacts in presence of light to form new substances that are glucose and oxygen.
So photosynthesis is a chemical change.
Answered by Varsha | 12 Nov, 2018, 12:22: PM
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