The following species cannot produce salt on reaction with acid.
Correct answer: C. Non-metal oxides
- A. Carbonates
- B. Metals
- C. Non-metal oxides
- D. Metal Hydroxides
Explanation
The correct answer is Option B: Metals. Not all metals react with acids to form salts. For instance, noble metals like gold and platinum do not form salts when they react with acids due to their lack of reactivity. Option A, carbonates, reliably form salts when reacting with acids, alongside water and carbon dioxide. Option C, non-metal oxides, generally react with bases rather than acids to form salts. Option D, metal hydroxides, undergo neutralization reactions with acids to produce salts and water.
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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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