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5ml water is taken in 3 test tubes. Copper, sodium and magnesium of equal mass are dropped in different test tubes. Test tubes having copper and magnesium are heated. a. Write the observations in the heated test tubes. b. Write the equation for the reaction in the test tube in which sodium is dropped, c. Arrange these metals in the decreasing order of their reactivity. |
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Answer» a. Mg reacts with hot water liberating hydrogen, Copper does not react with hot water. b. 2Na + 2H2O → 2NaOH + H2 . c. Na > Mg > Cu. |
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