Alkaline earth metals burn in nitrogen and form nitrides of type $M_{3} N_{2}$ . which of them is volatile in nature?

M g_{3} N_{2}

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B a_{3} N_{2}

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C a_{3} N_{2}

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B e_{3} N_{2}

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Solution

The correct option is D $B e_{3} N_{2}$
$B e$ is smallest and least electropositive element among alkaline earth metal. $B e$ when reacts with $N$ form weak bond hence $B e_{3} N_{2}$ is volatile while other metals form a strong bond and are not volatile, they are solid.

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Similar questions

A l N, M g_{3} N_{2}, L i_{3} N, B a_{3} N_{2}, C a_{3} N_{2}

A l N, M g_{3} N_{2}, L i_{3} N, B a_{3} N_{2}, C a_{3} N_{2}

Hydrolysis of nitrides of s-block elements (for eg: $B a_{3} N_{2}, C a_{3} N_{2}, L i_{3} N)$ will yield:

M_{3} N_{2}

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