CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2000

  • question_answer
    Which of the following molecules can act as an oxidizing as well as a reducing agent?

    A)  \[{{H}_{2}}S\]                  

    B)         \[S{{O}_{3}}\]

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

    D)         \[{{F}_{2}}\]

    E)  \[{{H}_{2}}S{{O}_{4}}\]

    Correct Answer: C

    Solution :

    Hydrogen peroxide\[({{H}_{2}}{{O}_{2}})\]can act as an oxidising as well as a reducing agent. \[{{H}_{2}}{{O}_{2}}\]as a reducing agent: \[A{{g}_{2}}O+{{H}_{2}}{{O}_{2}}\xrightarrow[{}]{{}}2Ag+{{H}_{2}}O+{{O}_{2}}\] \[{{H}_{2}}{{O}_{2}}\]as a oxidising agent:                 \[PbS+4{{H}_{2}}{{O}_{2}}\xrightarrow{{}}PbS{{O}_{4}}+4{{H}_{2}}O\]


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