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  • Why group II nitrides are made in nitrogen gas?Option: 1 Because of small size of cations.<div clas

Why group II nitrides are made in nitrogen gas?

Option: 1

Because of small size of cations.


Option: 2

Because of strong bonds of nitrogen.


Option: 3

Because they are covalent.


Option: 4

Because of high Lattice enthalpy.


Answers (1)

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A lot of energy is required to convert \mathrm{N}_2 \text { to } \mathrm{N}^{3-}ions. This is compensated by the high lattice enthalpy which is high due to high charges on \mathrm{M}^{2+} \text { and } \mathrm{N}^{3-}ion.

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