A reaction A2+B2→2AB occurs by the following mechanism A2→A+A .....(slow) A+B2→AB+B .....(fast) A+B→AB ...(fast) Its order would be
A
32
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B
1
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C
zero
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D
2
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Solution
The correct option is B 1 If a reaction occurs in how more steps the slowest step would determine the rate and order of reaction. Rate law equation is dxdt=k[A2] The reaction is of first order.