AFMC AFMC Solved Paper-2004

  • question_answer
    Which of the following metal has stable carbonates?

    A) Na                                         

    B) Mg

    C) Al                                           

    D) Si

    Correct Answer: A

    Solution :

    All alkali metals carbonates are resistant to heat i.e., do not decompose on heating. Other carbonates decompose on heating to give \[\text{C}{{\text{O}}_{\text{2}}}\]and oxide. The stability of carbonate increase on moving down a group. Li Na. K, Rb carbonates and nitrate \[\xrightarrow{\Delta }\] no effect


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