MCQOPTIONS
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| 1. |
Assertion A: Alum is the most commonly used coagulant in water treatment.Reason R: Alum is very effective in killing pathogens present in the water.Which of the following is correct? |
| A. | Both A and R are true, but R is not a correct explanation of A. |
| B. | A is true but R is false. |
| C. | Both A and R are true, and R is the correct explanation of A |
| D. | A is false but R is true. |
| Answer» B. A is true but R is false. | |