CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2008

  • question_answer
    Sodium peroxide which is a yellow solid, when exposed to air becomes white due to the formation of

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

    B)        \[N{{a}_{2}}O\]

    C) \[N{{a}_{2}}O\]and\[{{O}_{3}}\] 

    D)        \[NaOH\]and\[N{{a}_{2}}C{{O}_{3}}\]

    E) \[NaOH\]and\[{{H}_{2}}{{O}_{2}}\]

    Correct Answer: D

    Solution :

    Sodium peroxide reacts with moisture and\[C{{O}_{2}}\]of air (when exposed to air) and becomes white due to the formation of\[NaOH\]and\[N{{a}_{2}}C{{O}_{3}}\] \[2N{{a}_{2}}{{O}_{2}}+2{{H}_{2}}O\xrightarrow{{}}4NaOH+{{O}_{2}}\] \[2NaOH+C{{O}_{2}}\xrightarrow{{}}N{{a}_{2}}C{{O}_{3}}+{{H}_{2}}O\]


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