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JEE Main & Advanced Chemistry The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I Question Bank Carbon Family

  • question_answer
    Which alkali metal carbonate decomposes on heating to liberate \[C{{O}_{2}}\] gas [Pb. PMT 2000]

    A) \[L{{i}_{2}}C{{O}_{3}}\]

    B) \[CaC{{O}_{3}}\]

    C) \[N{{a}_{2}}C{{O}_{3}}\]

    D) \[A{{l}_{2}}C{{O}_{3}}\]

    Correct Answer: A

    Solution :

    Among alkali metal carbonates only \[L{{i}_{2}}C{{O}_{3}}\] decomposes. \[L{{i}_{2}}C{{O}_{3}}\xrightarrow{\Delta }L{{i}_{2}}O+C{{O}_{2}}\uparrow \]


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