

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. | |