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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Self Evaluation Test - Equilibrium

  • question_answer
    For a reversible gaseous reaction \[{{N}_{2}}+3{{H}_{2}}\rightleftharpoons 2N{{H}_{3}}\] at equilibrium, if some moles of \[{{H}_{2}}\] are replaced by same number of moles of \[{{T}_{2}}\](T is tritium, isotope of H and assume isotopes do not have different chemical properties) without affecting other parameter, then:

    A) the sample of ammonia obtained after sometime will be radioactive.

    B) moles of \[{{N}_{2}}\] after the change will be different as compared to moles of \[{{N}_{2}}\] present before the change

    C) the value of \[{{K}_{p}}\] or \[{{K}_{c}}\]will change

    D) the average molecular mass of new equilibrium will be same as that of old equilibrium

    Correct Answer: A

    Solution :

    [a] Since \[{{T}_{2}}\] has similar chemical properties as \[{{H}_{2}}\] so upon mixing, \[N{{H}_{2}}T\] and \[NH{{T}_{2}}\] are formed.


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