11th Class Chemistry The s-Block Elements

  • question_answer 41)   Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally? (a) \[MgC{{O}_{3}}\]                      (b) \[CaC{{O}_{3}}\]                        (c) \[SrC{{O}_{3}}\]                         (d) \[BeC{{O}_{3}}\]

    Answer:

      (d) The thermal stability of the carbonates of alkaline earth metals increases from Be to Ba. Ba has the lowest polarisation power.

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