Match the following-
| 1 | Bosch Method | i | Removal of temporary hardness of water |
| 2 | Clark’s method | ii | Removal of permanent hardness of water |
| 3 | Calgon’s method | iii | Production of H2 |
| 4 | Merck’s process | iv | Production of H2O2 |
1-iv, 2- ii, 3-i, 4-iii
1-iii, 2- i, 3-ii , 4-iv
1-iii, 2- ii, 3-i, 4-iv
1-iv, 2-i, 3-ii, 4-iii
The correct order is
| 1 | Bosch Method | iii | Production of H2. |
| 2 | Clark’s method | i | Removal of temporary hardness of water |
| 3 | Calgon’s method | ii | Removal of permanent hardness of water |
| 4 | Merck’s process | iv | Production of H2O2 |