29.. A possible mechanism for the reaction 2H2 + 2NO -> N2 + 2H2O is: Step 1: H2

Question

29.. A possible mechanism for the reaction 2H2 + 2NO -> N2 + 2H2O is:

Step 1: H2 + 2NO -> N2O + H2O     (slow)
Step 2: N2O + H2 -> N2 + H2O       (fast)

The molecularity of the elementary reaction on step 1 is: (Points : 3)

       Termolecular
       Bimolecular
       Unimolecular

29.. A possible mechanism for the reaction 2H2 + 2NO -> N2 + 2H2O is:

Step 1: H2 + 2NO -> N2O + H2O     (slow)
Step 2: N2O + H2 -> N2 + H2O       (fast)

The molecularity of the elementary reaction on step 1 is: (Points : 3)

       Termolecular
       Bimolecular
       Unimolecular

Explanation / Answer

In slowest step there are 1 H2 and 2 NO molecules collide

Molecularity= 1+2=3

Ans: Termolecular

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