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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

The reaction A+2B⇌2C+D was studied using an initial concentration of B which was 1.5 times that of A. But the equilibrium concentrations of A and C were found to be equal. Then the Kc for the equilibrium is:

Answer: (D)

Solution

Let [A]₀=a, [B]₀=1.5a; x reacted, [A]eq=a−x=[C]eq=2x → x=a/3.

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Question ID VK-136124