Magnesium is burnt in air to produce:Mg_3N_2MgOboth MgO and Mg_3N_2 MgCO_3 (2024)

When Mg is burnt in air and they are decomposed by H2O, MgO,Mg3N2 changing to Mg(OH)2 and NH3. If true enter 1, else enter 0.

Assertion :Magnesium metal burns in air to give a white ash.When this ash is treated with water, the odour of ammonia can be detected. Reason: Mg burns in air to form MgO and Mg3N2. It is the Mg3N2 which on hydrolysis gives NH3.
2Mg+O2→2MgO
3Mg+N2→Mg3N2
Mg3N2+6H2O→3Mg(OH)2+2NH3↑

120g Mg is burnt in air to give a mixture of MgO and Mg3N2. The mixture is now dissolved in HCl to form MgCl2 and NH4Cl. If 107g NH4Cl is produced, then determine the moles of MgCl2 formed.