Question

The correct statement with respect to dinitrogen is

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Answer 1

Electronic configuration of $N_2$:
$\sigma 1s^2{\sigma }^{\ast }1s^2\sigma 2s^2{\sigma }^{\ast }2s^2\pi 2p_y^2\pi 2p_z^2\sigma 2p_x^2$
All the electrons are paired. So,
$N_2$ is diamagnetic in nature.


$N_2+O_2\stackrel{2000K}{\rightleftharpoons }NO\left(g\right)$

Because of its inertness it is used where an inert atmosphere is required.
Option (b) is correct
Nitrogen and oxygen react at very high temperatures, not room temperature. Liquid nitrogen is used in cryosurgery