Q. The percentage of nitrogen in air by weight is around (Solved)
1. 24.3 percent
2. 23.1 percent
3. 65.5 percent
4. 75.5 percent
5. 20.3 percent
- d. 75.5 percent
1. 24.3 percent
2. 23.1 percent
3. 65.5 percent
4. 75.5 percent
5. 20.3 percent