The metal which does not react with nitrogen is (a) \( \mathrm{Li} \) (b) \( \mathrm{K} \) (c) \...

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