Que. | The chlorine demand of a water sample was found to be 5.0 mg/lit. The amount of bleaching powder containing 30% available chlorine to be added to treat one liter of such a water sample is : |
- A. 1.67
- B. 1.92
- C. 1.01
- D. 1.36
Right Answer is :
✓ A. 1.67
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