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  3. BHU PMT

BHU PMT BHU PMT (Mains) Solved Paper-2006

  • question_answer
    A bottle of dry ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends, the white ammonium chloride ring first formed will be:

    A)  at the centre of tube

    B)  near the hydrogen chloride bottle

    C)   near the ammonia bottle

    D)  throughout the length of the tube

    Correct Answer: B

    Solution :

                     Molecular mass of \[N{{H}_{3}}=17\] Moleclar mass of \[HCl=35.5\] \[\because \]rate of diffusion \[\propto \sqrt{\frac{1}{M}}\] \[\therefore \]\[N{{H}_{3}}\]will diffuse faster than\[HCl\]and hence ring will be formed first nearer to\[HCl\]bottle.


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