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Raaz Malhotra
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Asked: 2021-06-20T05:43:12+00:00 In:

Write chemical equations for the following reactions: (i) When zinc carbonate is calcined. (ii) When manganese dioxide is heated with aluminium powder. (iii) When magnesium is treated with very dilute nitric acid.

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      (i) When Zinc carbonate is calcined :
      ZnCo₃ ⟶ ZnO + CO₂↑
      (ii) When manganese dioxide is heated with aluminum powder:
      3MnO₂ + 4A1 ⟶ 3Mn + 2A1₂O₃
      (iii) When magnesium is heated with very dil. HNO₃:
      Mg + 2HNO₃ ⟶ Mg(NO₃)₂ + H₂

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