MGIMS WARDHA MGIMS WARDHA Solved Paper-2010

  • question_answer
    Which one does not form oxide on heating?

    A) \[ZnC{{O}_{3}}\]                              

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

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

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

    Correct Answer: D

    Solution :

                     \[ZnC{{O}_{3}}\xrightarrow{\Delta }ZnO+C{{O}_{2}}\] \[CaC{{O}_{3}}\xrightarrow{\Delta }CaO+C{{O}_{2}}\] \[L{{i}_{2}}C{{O}_{3}}\xrightarrow{\Delta }L{{i}_{2}}O+C{{O}_{2}}\] \[N{{a}_{2}}C{{O}_{3}}\xrightarrow{\Delta }not\text{ }decomposed\]


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