MHT CET202521 Apr 2025Morning ShiftChemistrys Block ElementsActual
Identify the product when magnesium burns in air.
Options
- AMgO only
- BMg ₃ ~N ₂ only
- CMg ₂ NO ₃
- DMgO and Mg ₃ ~N ₂
Correct answer
D. MgO and Mg ₃ ~N ₂
Step-by-step solution
When magnesium burns in air, it undergoes reactions with both oxygen and nitrogen. The primary reactions are: With oxygen: 2 Mg + O ₂ 2 MgO With nitrogen: 3 Mg + N ₂ Mg ₃ N ₂ The products formed are magnesium oxide and magnesium nitride. Answer: D