Question:medium

Consider the equilibrium reactions:
The equilibrium constant, $K_c$, for the overall dissociation \[ H_3PO_4 \rightleftharpoons 3H^+ + PO_4^{3-} \] is:

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Important rules of equilibrium constants:
• When reactions are added $\rightarrow$ multiply equilibrium constants.
• When a reaction is reversed $\rightarrow$ take reciprocal of $K$.
• When coefficients are multiplied by $n$ $\rightarrow$ raise $K$ to the power $n$.
Updated On: May 19, 2026
  • $ \dfrac{K_1}{K_2K_3} $
  • $ K_1K_2K_3 $
  • $ \dfrac{K_2}{K_1K_3} $
  • $ K_1 + K_2 + K_3 $
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The Correct Option is B

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