Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2008

  • question_answer
    \[Si{{O}_{2}}\] is reacted with sodium carbonate. What is the gas liberated?

    A)  \[CO\]                                 

    B)  \[{{O}_{2}}\]

    C)  \[C{{O}_{2}}\]                                  

    D)  \[{{O}_{3}}\]

    Correct Answer: C

    Solution :

    When silica is heated with metal carbonate, it form silicates. \[Si{{O}_{2}}+N{{a}_{2}}C{{O}_{3}}\xrightarrow{\Delta }N{{a}_{2}}Si{{O}_{3}}+C{{O}_{2}}\uparrow \]


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