JEE Main · 2020 · Shift-IeasyPB12-011

The correct statement with respect to dinitrogen is:

p-Block Elements (Class 12) · Class 12 · JEE Main Previous Year Question

Question

The correct statement with respect to dinitrogen is:

Options
  1. a

    N2\mathrm{N_2} is paramagnetic in nature.

  2. b

    It can combine with dioxygen at 25°C25°\mathrm{C}

  3. c

    Liquid dinitrogen is not used in cryosurgery.

  4. d

    It can be used as an inert diluent for reactive chemicals

Correct Answerd

It can be used as an inert diluent for reactive chemicals

Detailed Solution

Strategy: Consider the electronic structure and stability of the dinitrogen molecule.

Step 1: Nitrogen Bonding Dinitrogen (\ceN2)(\ce{N2}) features a triple bond (\ceNN)(\ce{N\equiv N}), which has an exceptionally high bond dissociation enthalpy (941 kJ/mol)(\approx 941 \text{ kJ/mol}).

Step 2: Conclusion Due to the immense stability of the triple bond, Nitrogen does not readily react with major atmospheric components under normal temperatures and pressures, behaving as an inert gas.

Answer: (Option) [d] behaves as an inert gas at ordinary temperature\boxed{\text{Answer: (Option) [d] behaves as an inert gas at ordinary temperature}}

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