Which of the following statements is incorrect?

  • A
    Corrosion of iron takes place by contact with air and water.
  • B
    The melting points and boiling points of metals are low.
  • C
    The method to convert carbonate containing ore to metal oxide is called calcination.
  • D
    The displacement of less active metals from their solution takes place by more active metal.

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Write chemical equations for the reactions taking place when:
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$(ii)$ lead carbonate is calcined.
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$(a)$ Identify $A$,$B$,and $C$.
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