A. Evolution of ammonia when heated with ammonium salts
B. Evolution of carbon dioxide gas when added to a trioxocarbonate (IV) salt
C. Formation of salt and water with alkalis
D. Formation of salt and hydrogen gas with reactive metals
Correct Answer: Option A
A. Evolution of ammonia when heated with ammonium salts
Explanation
Ammonium salts react with bases to release ammonia and not with acids.