Question
Question: Ammonia forms the complex [Cu(NH3)4]2+ with copper ions in alkaline solution but not in acid solutio...
Ammonia forms the complex [Cu(NH3)4]2+ with copper ions in alkaline solution but not in acid solution. The reason for it is :
A
In alkaline solution Cu(OH)2 is precipitated which is soluble in excess of alkali.
B
Copper hydroxide is amphoteric.
C
In acidic solution hydration protects Cu2+ ions.
D
In acidic solution protons coordinates with ammonia molecule forming NH4+ ions and NH3 molecules are not available.
Answer
In acidic solution protons coordinates with ammonia molecule forming NH4+ ions and NH3 molecules are not available.
Explanation
Solution
It is a reason for given fact.