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DUMET Medical DUMET Medical Solved Paper-2003

  • question_answer
    Ammonia and \[HCl\] gases are allowed to pass in the glass tube from the opposite ends. Formation of \[N{{H}_{4}}Cl\] white ring, will take place:

    A)  nearer the \[N{{H}_{3}}\] end

    B)  at the centre

    C)  nearer \[HCl\] end

    D)  anywhere

    Correct Answer: C

    Solution :

    Key Idea: According to Grahams law of diffusion \[r\propto \sqrt{\frac{1}{M}}\] Mol. wt. of \[HCl=1.35.5=36.5\] Mol. wt. of \[N{{H}_{3}}=14+3=17\] \[\because \] Rate of diffusion is faster for \[N{{H}_{3}}\] \[\therefore \] Product \[N{{H}_{4}}Cl\] will be formed near \[HCl\]end.


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