Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    Which of the following oxides reacts with \[HCl\] and\[NaOH\]?

    A)  \[CaO\]                              

    B) \[ZnO\]

    C)  \[{{N}_{2}}{{O}_{5}}\]                                  

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

    Correct Answer: B

    Solution :

    \[ZnO\]is an amphoteric oxide, it dissolves both in acid and alkalise to give zinc salt and zincates respectively. \[ZnO+2HCl\xrightarrow{{}}ZnC{{l}_{2}}+{{H}_{2}}O\]\[ZnO+2NaOH\xrightarrow{{}}\underset{sodium}{\mathop{N{{a}_{2}}Zn{{O}_{2}}}}\,+{{H}_{2}}O\]


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