The alum, when added as a coagulant in water_______________?
B. does not affect pH value of water
C. increases pH value of water
D. decreases pH value of water(Correct)
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
1) involves successive trials
2) takes economic aspects into account
3) is time consuming
The correct answer is?
A. only (1)
B. (1)and(2)
C. (1) and (3)
D. all are correct
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.