I am a sour solution that can turn litmus blue or red, depending on my strength. What am I?
Category: Science · Difficulty: hard
Hint: Consider substances that can donate protons in a reaction.
Answer
Acidic liquid
Explanation
Acids are substances that can donate a proton (H+) in a chemical reaction, and they turn litmus paper red, while bases turn it blue.
This is a hard science riddle — a tricky one that takes a little thought. The answer is Acidic liquid.
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