Which of the following is strongest acid amongst these?
Correct answer: B. H₂S
- A. CH₃COOH
- B. H₂S
- C. H₂O
- D. HCN
Explanation
The strongest acid amongst the given options is H₂S, as it dissociates more in water compared to the other options. CH₃COOH is a weak acid because it does not completely dissociate in water. H₂O is neutral and does not act as an acid in typical conditions. HCN is also a weak acid, weaker than H₂S. Therefore, H₂S is the strongest acid among the given choices.
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About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
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