NEET 2019 Model Question Paper 3

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Question : 143 of 180
 
Marks: +1, -0
The hypothetical reaction, A2+B2→2AB, follows the mechanism given below:
a) A2↔A+A (fast)
b) A+B2→AB+B (slow)
c) A+B→AB (fast)
the order of overall reaction is:
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