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The rate law for the reaction $A + B \rightarrow C$ at $25^{\circ} C$ is given by $\text{rate} = k[A][B]^2$. Calculate the rate of reaction if the rate constant at the same temperature is $6.25 \ mol^{-2} \ dm^6 \ s^{-1}$ where $[A] = 1 \ M$ and $[B] = 0.2 \ M$.
- A$0.25 \ mol \ dm^{-3} \ s^{-1}$
- B$0.5 \ mol \ dm^{-3} \ s^{-1}$
- C$0.75 \ mol \ dm^{-3} \ s^{-1}$
- D$1.25 \ mol \ dm^{-3} \ s^{-1}$
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