Acid–base species: Identify the hydronium ion among the following chemical species. Recall that hydronium is protonated water (the actual carrier of ‘‘H⁺’’ in aqueous solution). Choose the correct option.
IIT JEE
Chemistry
Difficulty: Easy
Choose an option
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AH⁺
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BHO⁻
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CH₂⁺
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DH₃O⁺
Answer
Correct Answer: H₃O⁺
Explanation
Concept/ApproachIn water, free protons do not exist as ‘‘H⁺’’; they are solvated to form hydronium, H₃O⁺. Hydroxide is HO⁻; H₂⁺ is not hydronium.