40 Which of the following is not an example of a redox reaction?
(A)3Mg+N₂→Mg₃N₂
(B)2P³⁻+6H₂O→2PH₃+6OH⁻
(C)2NaN₃→2Na+N₂
(D)2NO+O₂→2NO₂

(E)N₂H₄+O₂→N₂+2H₂O

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