Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2009

  • question_answer
    Silica is soluble in

    A)  \[HCl\]                                

    B)  \[HN{{O}_{3}}\]

    C)  \[{{H}_{2}}S{{O}_{4}}\]                                

    D)  \[HF\]

    Correct Answer: D

    Solution :

    Hydrofluoric acid, HP is the only acid in which silica \[(Si{{O}_{2}})\] is soluble due to the formation of silicon tetrafluoride as\[Si{{O}_{2}}+4HF\xrightarrow{{}}Si{{F}_{4}}+2{{H}_{2}}O\]


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