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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
The head of the matchstick contains ______ and ______.
The term electrolysis was introduced by ______.
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 |
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 the conditions required for a chemical reaction to take place?
What is brine commonly known as?
Explain the process of corrosion and rusting.
Reason out
The speed of a certain reaction is influenced by the catalyst.
