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

  • question_answer
    The hydride ion \[{{H}^{-}}\] is stronger base than its hydroxide ion\[O{{H}^{-}}\]. Which of the following reactions will occur if sodium hydride \[\left( NaH \right)\] is dissolved in water?

    A) \[{{H}^{-}}(aq)+{{H}_{2}}O\to {{H}_{3}}{{O}^{-}}\]

    B) \[{{H}^{-}}\left( aq \right)+{{H}_{2}}O\left( l \right)\to O{{H}^{-}}+{{H}_{2}}\]

    C) \[{{H}^{-}}~+{{H}_{2}}O\to \] No reaction

    D) None of these

    Correct Answer: B

    Solution :

    [b] \[{{H}^{-}}\left( aq \right)+{{H}_{2}}O\left( l \right)\to O{{H}^{-}}+{{H}_{2}}.\] Since H- is a strong base it will abstract \[{{H}^{+}}\] to form \[{{H}_{2}}{{O}_{2}}\]


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