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Classify the following reaction : (a) N2 (g) + O2(g) → 2NO(g)  (b) 2 Pb(NO3)2 (s) → 2PbO (s) + 4NO2 (g) + O2 (g) 

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Classify the following reaction :

(a) N2 (g) + O2(g) → 2NO(g) 

(b) 2 Pb(NO3)2 (s) → 2PbO (s) + 4NO2 (g) + O2 (g) 

(c) NaH (s) + H2O (l) → NaOH (aq) + H2 (g)

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The compound nitric oxide is formed

The compound nitric oxide is formed. 

Therefore, it is a combination redox reaction.

In this reaction lead nitrate decomposed

In this reaction, hydrogen of water

In this reaction, hydrogen of water is displaced by hydride ion to form di-hydrogen gas. Therefore, it is a displacement reaction.

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