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Which of the following is displacement redox reaction?

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N₂ + O₂ $\to$ 2 NO

2NO₂ + 2 OH^- $\to$ ${NO}_{2}^{-} + {NO}_{3}^{-} + H_{2} O$

2Pb(NO₃)₂ $\to$ 2PbO +4NO₂ +O₂

NaH+H₂O $\to$ NaOH +H₂

answer is D.

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Detailed Solution

option 4: Hydrogen of water has been displaced to form H₂ gas ----displacement redox reaction

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