A metal which does not react with nitrogen is : (a) \( \mathrm{Li} ...

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A metal which does not react with nitrogen is :
(a) \( \mathrm{Li} \)
(b) \( \mathrm{K} \)
(c) \( \mathrm{Ca} \)
(d) \( \mathrm{Mg} \)
\( \mathrm{P} \)
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