When a blue litmus is dipped in a solution it becomes red, its pH is likely to…
2024
When a blue litmus is dipped in a solution it becomes red, its pH is likely to be:
- A.
9
- B.
7
- C.
10
- D.
5
- E.
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Correct answer: D
Blue litmus paper turns red in the presence of an acidic solution. Acids have a pH value less than 7. Therefore, a pH of 5 indicates an acidic environment.