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प्रश्न
Compound X and aluminium are used to join railway tracks.
- Identify the compound X
- Name the reaction
- Write down its reaction.
उत्तर
- Compound X is Fe2O3
- Displacement reaction
- `"Fe"_2"O"_3("s") + 2"Al"overset("Heat")(->)"Al"_2"O"_3("s") + 2"Fe"("l")`
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संबंधित प्रश्न
Give one example each of which illustrates the following characteristics of a chemical reaction:
evolution of a gas
Write chemical equation for the event.
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Three metal samples of magnesium, aluminium and iron were taken and rubbed with sandpaper. These samples were then put separately in test tubes containing dilute hydrochloric acid. Thermometers were also suspended in each test tube so that their bulbs dipped in the acid. The rate of formation of bubbles was observed. The above activity was repeated with dilute nitric acid and the observations were recorded.
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OR
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