Question
Distinguish between:
Endothermic reaction and Exothermic reaction.
Endothermic reaction and Exothermic reaction.
| Endothermic reaction | Exothermic reaction |
| 1. A chemical reaction in which heat energy is absorbed during the formation of product is called an endothermic reaction. | 1. A chemical reaction in which heat energy is evolved during the formation of product is called an exothermic reaction. |
| 2. For example, reaction of barium hydroxide with ammonium chloride is an endothermic reaction. | 2. For example, reaction of quick lime with water is an exothermic reaction. |
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| $(a)$ | Bio-magnification | Accumulation of chemicals at each stage of the food chain |
| $(b)$ | Ecosystem | Biotic components of the environment |
| $(c)$ | Aquarium | Man-made ecosystem |
| $(d)$ | Parasite | An organism that obtains nutrition from other organisms |