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

  • question_answer              of the three metals X, Y and Z, X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity.

    Answer:

                      X = Sodium; Y = Magnesium; Z = Iron Order of increasing reactivity of these metals is Z (Fe) <Y (Mg) < X (Na)                                  (3)


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