The p-Block Elements — Chemistry STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
Question
Why is $N_2$ less reactive at room temperature?
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Answer
Dinitrogen $(N_2)$ is formed by sharing three electron pairs between two nitrogen atoms. The two nitrogen atoms are joined by triple bond $(N≡N).$ The nitrogen atom is very small in size, therefore the bond length is also quite small (109.8 pm) & as a result the bond dissociation energy is quite high (946Kj / mol).This reason leads $N_2$ to be very less reactive at room temperature.
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