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(C) The elements $Li$ and $Mg$ react with atmospheric nitrogen upon heating to form their respective nitrides,which upon hydrolysis yield ammonia. The

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$Li, Mg$

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(C) The elements $Li$ and $Mg$ react with atmospheric nitrogen upon heating to form their respective nitrides,which upon hydrolysis yield ammonia. The reactions are as follows:$6 Li + N_2 \rightarrow 2 Li_3N$$Li_3N + 3 H_2O \rightarrow 3 LiOH + NH_3 \uparrow$$3 Mg + N_2 \rightarrow Mg_3N_2$$Mg_3N_2 + 6 H_2O \rightarrow 3 Mg(OH)_2 + 2 NH_3 \uparrow$

Which metals upon heating in the presence of air followed by hydrolysis give ammonia?

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