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NEET Sample Paper NEET Sample Test Paper-23

  • question_answer
    The equivalent weight of phosphoric acid \[({{H}_{3}}P{{O}_{4}})\]in the below reaction is \[NaOH+{{H}_{3}}OH\to Na{{H}_{2}}P{{O}_{4}}+{{H}_{2}}O\]

    A)  67                 

    B)  49

    C)  34                 

    D)  89

    Correct Answer: B

    Solution :

    \[\underset{40\,g}{\mathop{NaOH}}\,+\underset{98\,g}{\mathop{{{H}_{3}}P{{O}_{4}}}}\,\to Na{{H}_{2}}P{{O}_{4}}+{{H}_{2}}O\] \[1\,g-eq.\,\,1g-eq.\] \[1\,g-eq.\,1\,g-eq.\] Hence, the correct option is [b].


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