BCECE Medical BCECE Medical Solved Papers-2003

  • question_answer
    Which of the following oxides is most acidic?

    A)  \[A{{l}_{2}}{{O}_{3}}\]         

    B)  \[Si{{O}_{3}}\]

    C)  \[{{P}_{2}}{{O}_{5}}\]

    D)  \[MgO\]

    Correct Answer: C

    Solution :

    Key Idea: Oxides of metals are basic but that of nonmetals are acidic. Acidity of oxides increases on moving from left to right in a period. \[\therefore \] Order of increasing acidic character among given oxides is                 \[MgO<A{{l}_{2}}{{O}_{3}}<Si{{O}_{2}}<{{P}_{2}}{{O}_{5}}\] \[\therefore \] \[{{P}_{2}}{{O}_{5}}\] is most acidic oxide.


You need to login to perform this action.
You will be redirected in 3 sec spinner