Advertisements
Advertisements
प्रश्न
When an element ‘X’ reacts with water, it starts floating. Identify the element ‘X’:
पर्याय
Potassium
Calcium
Sodium
Iron
MCQ
Advertisements
उत्तर
Calcium
Explanation:
Calcium reacts less violently with water. The reaction produces hydrogen gas. The bubbles of H2 gas stick to the surface of the metal pieces, making them buoyant and causing the metal to float.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
