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Which of the following group 2 elements does not form a nitride ?
A. Be
B. Mg
C. Ca
D. All group 2 elements form nitrides

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Correct Answer - D
All group 2 elements burn in `N_(2)` to form nitrides `M_(2)N_(2)` on account of high lattice enthalpy provided by high charge densities of `M^(2+) " and" N^(3-)` ions.

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