Match List – I (Compounds of Nitrogen) with List – II (Permissible limit) and the select the most appropriate option.
|
List – I (Compound of Nitrogen) |
List – II (Permissible Limit (ppm) |
|
A. Free Ammonia |
1. 0.30 |
|
B. Albinoid Ammonia |
2. 0 |
|
C. Nitrites |
3. 0.15 |
|
D. Nitrates |
4. 45 |
1
A-1, B-3, C-4, D-2
2
A-1, B-3, C-2, D-4
3
A-3, B-1, C-4, D-2
4
A-3, B-1, C-2, D-4