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प्रश्न
Calcium floats over water during the reaction with water. Give reason.
एका वाक्यात उत्तर
उत्तर
1. Calcium reacts with waterless vigorously so that the heat evolved is not sufficient for the hydrogen formed, to catch fire.
2. Instead, calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of the water calcium
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