A salt of a weak acid & a weak base is:
Correct answer: C. NH₄NO₂
- A. NH₄NO₃
- B. NaCN
- C. NH₄NO₂
- D. K₂CO₃
Explanation
Ammonium nitrite (NH₄NO₂) is formed from the reaction of a weak base, ammonia (NH₃ or NH₄OH), and a weak acid, nitrous acid (HNO₂).
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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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