Which of the following may not be a strong electrolyte?a)Hydrochloric ...
Electrolytes which dissociate almost completely into constituent ions in aqueous solutions are known as strong electrolytes. Therefore ammonia is not a strong electrolyte because it can’t dissociate completely.
Which of the following may not be a strong electrolyte?a)Hydrochloric ...
Explanation:
Definition of Strong Electrolyte:
A strong electrolyte is a substance that completely dissociates or ionizes in water, producing ions and conducting electricity. These substances are highly soluble in water and exist primarily as ions in solution.
a) Hydrochloric Acid (HCl):
Hydrochloric acid is a strong acid and a strong electrolyte. When it dissolves in water, it ionizes completely into H+ and Cl- ions. Therefore, it is a strong electrolyte.
b) Sulfuric Acid (H2SO4):
Sulfuric acid is also a strong acid and a strong electrolyte. It dissociates completely in water, producing H+ and sulfate (SO4^2-) ions. Hence, it is a strong electrolyte.
c) Nitric Acid (HNO3):
Nitric acid is a strong acid and a strong electrolyte. It ionizes completely in water, forming H+ and nitrate (NO3-) ions. Hence, it is a strong electrolyte.
d) Ammonia (NH3):
Ammonia is not a strong electrolyte. It is a weak base that partially ionizes in water. In water, it combines with water molecules to form ammonium ions (NH4+) and hydroxide ions (OH-). However, only a small fraction of ammonia molecules actually ionize. Therefore, the conductivity of ammonia solutions is relatively low compared to strong electrolytes. Hence, ammonia is not a strong electrolyte.
Conclusion:
Among the given options, ammonia (NH3) may not be a strong electrolyte. It is a weak base that only partially ionizes in water, resulting in low conductivity.
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