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Chemistry · Oct / Nov 2021 · Paper 11 · Question 31

5070Reactivity series

Different metals react with water in different ways. Which statement is correct?

  1. ACalcium does not react with cold water.
  2. BIron reacts slowly with steam to produce an oxide of iron and hydrogen.
  3. CMagnesium reacts with steam to produce magnesium hydroxide and oxygen.
  4. DSodium reacts with cold water to produce aqueous sodium oxide and hydrogen.

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Correct answer: B. Iron reacts slowly with steam to produce an oxide of iron and hydrogen.

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