JAMB - Chemistry (2023 - No. 43)
A blue litmus paper turns red when dipped into a solution. What does this indicate about the solution?
The solution is basic
The solution is neutral
The solution is acidic
The litmus paper is faulty
Explicació
If a blue litmus paper turns red when dipped into a solution, it indicates the presence of an acid in the solution. Acids turn blue litmus paper red.