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प्रश्न
Why photosynthesis is a chemical reaction?
उत्तर
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Photosynthesis is a process in which light energy from the sun is used by the plants to prepare starch from carbon dioxide and water.
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The sunlight uses the chemical reaction between carbon dioxide and water, which finally ends up in the production of starch (photo means light and synthesis means production). These chemical reactions used by light are called photochemical reactions.
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संबंधित प्रश्न
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe ______.
Decaying of vegetables and fruits due to microbes.
Match the following
| i. | Quick lime | a. | Calcium hydroxide |
| ii. | Slaked lime | b. | Calcium oxide |
| iii. | Thermolysis | c. | Light |
| iv. | Photochemical | d. | Heat |
Match the following
| i. | Apples | a. | Oxygen |
| ii. | Fatty acids | b. | Browning |
| iii. | Acid rain | c. | Rancidity |
| iv. | Solid camphor | d. | Air pollution |
What are catalystic reactions?
Define the term exothermic and endothermic reactions.
What happens to the steel benches and tables during the rainy season?
Explain the process of corrosion and rusting.
Write a note on catalytic reactions.
Reason out
Chlorine is produced by Brine.
