JEE Main & Advanced Sample Paper JEE Main Sample Paper-18

  • question_answer
    The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.
    \[{{K}_{2}}C{{O}_{3}}(I),\]
    \[MgC{{O}_{3}}(II),\]
    \[CaC{{O}_{3}}(III),\]
    \[BeC{{O}_{3}}(IV)\]

    A)  \[I<II<III<IV\]                  

    B)  \[IV<II<III<I\]

    C)  \[IV<II<I<III\]                  

    D)  \[II<IV<III<I\]

    Correct Answer: B

    Solution :

     The stability of carbonates increases with increasing electropositive character of metal.


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