Assertion A: Treatment with ozone does not ensure safety against future recontamination.
Reason R: No residual can be maintained as it is highly unstable.
Which of the following is correct?
1
Both A and R are true, but R is not a correct explanation of A.
2
A is true but R is false.
3
Both A and R are true, and R is the correct explanation of A
4
A is false but R is true.
5
Question Not Attempted