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प्रश्न
Why photosynthesis is a chemical reaction?
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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
Define catalysis.
The head of the matchstick contains ______ and ______.
The sides of the matchbox contain ______.
The head of a matchstick contains red phosphorous.
Catalyst inhibits the chemical reaction.
Match the following
| i. | Quick lime | a. | Calcium hydroxide |
| ii. | Slaked lime | b. | Calcium oxide |
| iii. | Thermolysis | c. | Light |
| iv. | Photochemical | d. | Heat |
What happens to the steel benches and tables during the rainy season?
Explain the process of corrosion and rusting.
Reason out
The speed of a certain reaction is influenced by the catalyst.
Reason out
Chlorine is produced by Brine.
