Manipal Medical Manipal Medical Solved Paper-2005

  • question_answer
    Which of the following acts as an oxidising as well as reducing agent?

    A)  \[N{{a}_{2}}O\]        

    B)  \[N{{a}_{2}}{{O}_{2}}\]

    C)  \[NaN{{O}_{3}}\]      

    D)  \[NaN{{O}_{2}}\]

    Correct Answer: D

    Solution :

     \[NaN{{O}_{2}}\](sodium nitrite) act both as oxidising as well as reducing agent because in it N-atom is in\[+3\]oxidation state (intermediate oxidation state). Oxidising property: \[2NaN{{O}_{2}}+2KI+2{{H}_{2}}S{{O}_{4}}\xrightarrow[{}]{{}}N{{a}_{2}}S{{O}_{4}}\] \[+{{K}_{2}}S{{O}_{4}}+2NO+2{{H}_{2}}O+{{I}_{2}}\] Reducing property: \[{{H}_{2}}{{O}_{2}}+NaN{{O}_{2}}\xrightarrow[{}]{{}}NaN{{O}_{3}}+{{H}_{2}}O\]


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