JAMB - Chemistry (2005 - No. 36)
When pure aluminium metal is heated to red hot in the presence of nitrogen gas, the compound formed is
Al2N
Al2N2
AlN
Al2N3
Vysvetlenie
When pure aluminum metal is heated to red-hot in the presence of nitrogen gas, it undergoes a chemical reaction, forming aluminum nitride (AlN).
The reaction can be represented by the following balanced chemical equation: 2 Al(s) + N₂(g) → 2 AlN(s).