JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Topic Test - Chemical Equilibrium (6-5-21)

  • question_answer
    The vapour density of completely dissociated \[N{{H}_{4}}Cl\] would be                

    A) Slight less than half that of \[N{{H}_{4}}Cl\]

    B) Half  that of \[N{{H}_{4}}Cl\]

    C) Double that of \[N{{H}_{4}}Cl\]

    D) Determined by the amount of solid \[N{{H}_{4}}Cl\] in the experiment

    Correct Answer: B

    Solution :

    [b] \[\frac{\text{Normal}\,\,\text{molecular}\,\,\text{weight}}{\text{experimental}\,\,\text{molecular}\,\,\text{wt}\text{.}}\]= 1 + a
                \[N{{H}_{4}}Cl\] \[\rightleftharpoons \] \[N{{H}_{3}}+HCl\]
                            \[\because \alpha =1\] \Experimental Molecular wt =\[\frac{\text{nor}\text{.mol}\text{.wt}\text{.}}{2}\]

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