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Q.

Reaction of oxygen is endothermic when it reacts with

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a

$N_{2} (g)$

b

$H_{2} (g)$

c

C (graphite)

d

$P_{4} (s)$

answer is B.

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Detailed Solution

$N_{2} (g) + O_{2} (g) \to 2 MO (g); Δ H = + 180 KJ / mole$

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Reaction of oxygen is endothermic when it reacts with