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The p-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
Question
Give reasons for the least reactivity of nitrogen molecule.
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Answer

Due to presence of a triple bond between the two N-atoms, the bond dissociation enthalpy $(941.4\ kJ\ mol^{-1})$ is very high. Hence, $N_2$​​​​​​​_ is the least reactive.

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