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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 38

  • question_answer
    A sample of Ammonium Phosphate \[{{(N{{H}_{4}})}_{3}}P{{O}_{4}}\] contains 3.18 moles of hydrogen atoms. The number of moles of oxygen atoms in the sample is -

    A) 0.265  

    B)        0.795

    C) 1.06     

    D)        3.18

    Correct Answer: C

    Solution :

    [c] \[\therefore \] 12 moles of hydrogen in the sample = 4 moles of oxygen \[\therefore \]1 moles of hydrogen \[=\frac{4}{12}\] moles of oxygen \[\therefore \] 3.18 mole of hydrogen \[=\frac{4}{12}\times 3.18\] = 1.06 moles of oxygen


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