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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Law of equilibrium and Equilibrium constant

  • question_answer
    A + B ⇌ C + D. If finally the concentration of A and B are both equal but at equilibrium concentration of D will be twice of that of A then what will be the equilibrium constant of reaction. [BHU 2005]

    A)                 4 / 9      

    B)                 9 / 4

    C)                 1 / 9      

    D)                 4

    Correct Answer: D

    Solution :

           A + B ⇌ C + D                    x     x       0     0                                    2x   2x                                 \[{{K}_{c}}=\frac{[C][D]}{[A][B]}=\frac{2x\,.\,2x}{x\,.\,x}=4\]


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