Assertion A: The determination of pH value of sewerage is important.
Reason R: The efficiency of certain treatment method depends upon the availability of the pH value.
Which of the following is correct?
1
A is true but R is false.
2
Both A and R are true, and R is the correct explanation of A
3
A is false but R is true.
4
Both A and R are true, but R is not a correct explanation of A
5
Question Not Attempted