A) \[\frac{[A]{{[B]}^{3}}}{[C]}\]
B) \[\frac{[C]}{[A][2B]}\]
C) \[\frac{[C]}{[A]{{[B]}^{2}}}\]
D) \[\frac{[A][B]}{[C]}\]
Correct Answer: C
Solution :
For the reaction, \[2B+AC\] Rate of forward reaction\[={{k}_{f}}[A]{{[B]}^{2}}\] Rate of backward reaction \[={{k}_{b}}[C]\] At equilibrium, Rate of forward reaction = Rate of backward reaction \[{{k}_{f}}[A]{{[B]}^{2}}={{k}_{b}}[C]\] \[\frac{{{k}_{f}}}{{{k}_{b}}}=\frac{[C]}{[A][B]}={{K}_{c}}\]
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