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Order and molecularity of 2NO2 to 2NO + O2

The same question, asked 3 times: 20 Apr 2025 S2, 26 Apr 2025 S1, 20 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    20 Apr 2025 S2

    72
    What is order and molecularity of following reaction?
    NO2(g)+NO2(g)⟶2NO(g)+O2(g)NO_{2(g)}+NO_{2(g)}\longrightarrow 2NO_{(g)}+O_{2(g)}

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  2. Question 2

    26 Apr 2025 S1

    56
    Identify the order of following reaction? 2NO2( g)→2NO(g)+O2( g)2NO_{2(\text{ }g)}\rightarrow 2NO_{(g)}+O_{2(\text{ }g)}

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  3. Question 3

    20 Apr 2026 S2

    30
    What is the order and molecularity of the following elementary reaction? 2NO2(g)→2NO(g)+O2(g)\mathrm{2NO_{2(g)} \rightarrow 2NO_{(g)} + O_{2(g)}}, rate =k×[NO2]2= k \times [\mathrm{NO_2}]^2

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