NEET Chemistry Hydrogen & Its Compounds / हाइड्रोजन और इसके यौगिक Question Bank Self Evaluation Test - Hydrogen

  • question_answer
    An inorganic compound gives off \[{{O}_{2}}\] when heated, turns an acidic solution of KI violet and reduces acidified\[KMn{{O}_{4}}\]. The compound is

    A) \[S{{O}_{3}}\]                         

    B) \[KN{{O}_{3}}\]

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

    D) All of these

    Correct Answer: C

    Solution :

    [c] \[2{{H}_{2}}{{O}_{2}}\xrightarrow{\Delta }2{{H}_{2}}O+{{O}_{2}}\] \[2KI+{{H}_{2}}{{O}_{2}}\to 2KOH+{{I}_{2}}\] \[2KMn{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}+5{{H}_{2}}{{O}_{2}}\to \] \[{{K}_{2}}S{{O}_{4}}+2MnS{{O}_{4}}+8{{H}_{2}}O+5{{O}_{2}}\]


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