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Magnesium powder buss in air to give -
Option: 1
$\mathrm{MgO}, \mathrm{Mg}_3 \mathrm{N}_2$

Option: 2
$\mathrm{Mg}\left(\mathrm{NO}_3\right)_2$

Option: 3
$\mathrm{\mathrm{MgO}}$

Option: 4
$\mathrm{\mathrm{Mg}_3 \mathrm{N}_3}$

Answers (1)

best_answer

Magnesium powder burns in air to give $\mathrm{M gO \: and \: M g_3 N_2}$ . $\mathrm{M gO }$ does not combine with excess oxygen to give any superoxide. $\mathrm{M g}$ reacts with nitrogen to form magnesium nitride. $\mathrm{ ( \mathrm{Mg}_3 \mathrm{N}_2 )}$

$\mathrm{ \mathrm{Mg}+O_2\rightarrow MgO}$

$\mathrm{ 3 \mathrm{Mg}+N_2\rightarrow Mg_3N_2}$

Hence option 1 is correct.

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mansi

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