The various treatment processes in a water treatment plant are listed below:

1. filtration

2. chlorination

3. sedimentation

4. coagulation

5. flocculation

The correct sequence of these processes in water treatment is

- 1
  
  1, 2, 3, 4, 5
- 2
  
  4, 5, 3, 1, 2
- 3
  
  2, 3, 1, 5, 4
- 4
  
  1, 2, 5, 3, 4

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