At 800∘C the rate of reaction 2NO+H₂→N₂+H₂O Changes with the concentration of NO and H2 are
[NO] in M [H₂] in M −1/2 d[NO]/dt in M sec⁻¹
(i) 1.5×10⁻⁴ 4×10⁻³ 4.4×10⁻⁴
(ii) 1.5×10⁻⁴ 2×10⁻³ 2.2×10⁻⁴
(iii) 3.0×10⁻⁴ 2×10⁻³ 8.8×10⁻⁴
What is the order of this reaction ?