A chemist was found dead in his lab. A beaker next to him contained a clear liquid labeled 'H2O2'. The note he left read: 'My partner poisoned my drink with the extra oxygen.' Police arrested the partner, but the defense lawyer pointed out a fatal flaw in the victim's accusation. What was it?
H2O2 is hydrogen peroxide, not water with extra oxygen
While hydrogen peroxide chemically has one more oxygen atom than water (H2O vs H2O2), you cannot simply add 'extra oxygen' to regular drinking water to make peroxide; they are distinct chemical compounds.
About this riddle
Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.
Difficulty: Hard. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
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