JEE Main20199 Apr 2019Morning ShiftChemistrys Block ElementsActual
Magnesium powder burns in air to give
Options
- AM g O   a n d   M g 3 N 2 .
- BM g O   o n l y .
- CM g N O 3 2   a n d   M g 3 N 2 .
- DM g O   a n d   M g N O 3 2 .
Correct answer
A. M g O   a n d   M g 3 N 2 .
Step-by-step solution
N 2 and O 2 are present in the air as the main constituent, so the following reaction takes place: Mg + O 2 → M gO ,       M g + N 2 → M g 3 N 2 will form.