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BVP Medical BVP Medical Solved Paper-2004

  • 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 :

                    Ammonia (mol. wt. = 17) diffuse faster than \[HCl\] gas (mol. wt. =36.5) according to Grahams law of diffusion, i.e., \[r\propto \frac{1}{\sqrt{M}}\] Hence, white ring of reaction product of these gases (i.e., \[N{{H}_{4}}Cl\]) will be formed at nearer to the \[HCl\] gas end.


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