10th Class Science Metals and Non-metals Question Bank 10th CBSE Science Metals and Non-metals

  • question_answer   Which of the following metals will melt at body temperature (37°C)? Gallium, magnesium, caesium, aluminium

    Answer:

                      Calcium reacts with water to form hydrogen gas. Although calcium is heavier than water, but due to the sticking of the  gas bubbles on calcium metal surface, it starts floating.


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