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For the reaction 2A + B → C, the values of initial rate at different reactant concentrations are given in the table below. The rate law for the reaction is : [A] (mol L –1 ) [B] (mol L –1 ) Initial Rate (mol L –1 s –1 ) 0.05 0.05 0.045 0.10 0.05 0.090 0.20 0.10 0.72

1. Rate = k[A] [B]
2. Rate = k [A] [B] 2
3. Rate = k [A] 2 [B] 2
4. Rate = k [A] 2 [B]

Correct answer: Rate = k [A] [B] 2

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