1.

Magnisium powder burns in air to give:

Answer»

MgO only
MgO and `Mg(NO_(3))_(2)`
MgO and `Mg_(3)N_(2)`
`Mg(NO_(3))_(2)` and `Mg_(3)N_(2)`

Solution :`Mg+underset(O_(2)//N_(2))("AIR") OVERSET(Delta)to MgO +Mg_(3)N_(2)`


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