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प्रश्न
Write the chemical equation for the following reaction:
Calcium metal reacts with water.
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उत्तर
\[\ce{\underset{\text{Calcium}}{Ca}+\underset{\text{Water}}{2H2O}->\underset{\text{Calcium hydroxide}}{Ca(OH)2}+\underset{\text{Hydrogen gas}}{H2}}\]
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संबंधित प्रश्न
Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.
Write equations for the reactions of iron with steam.
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.
| Metal | Iron (II) sulphate | Cooper (II) sulphate | Zinc sulphate | Silver nitrate |
| A | No reaction | Displacement | ||
| B | Displacement | No reaction | ||
| C | No reaction | No reaction | No reaction | Displacement |
| D | No reaction | No reaction | No reaction | No reaction |
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- Which is the most reactive metal?
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Na + O2 →
Fill in the following blank with suitable word:
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