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Class 10 Science Medium Mcq English Medium

Calcium starts floating in water after some time mainly because

Question
Calcium starts floating in water after some time mainly because
It is lighter than water
Bubbles of hydrogen gas formed stick to its surface
It dissolves completely in water
It reacts only with oxygen, not water
Answer
Bubbles of hydrogen gas formed stick to its surface
Detailed Explanation
Hydrogen gas bubbles produced during the reaction stick to calcium's surface, causing it to float.
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