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Ammonia forms the complex [Cu(NH(3))(4)]...

Ammonia forms the complex `[Cu(NH_(3))_(4)]^(2+)` with copper ion in alkaline solution but not in acidic solution. This is due to the reason that :

A

In alkaline solution `Cu(OH)_(2)` is precipitated which is soluble in excess of alkali

B

Copper hydroxide is amphoteric substance

C

In acidic solution hydration protects `Cu^(2+)` ions

D

In acidic solution protons are coordinated with ammonia molecules forming `NH_(4)^(+)` ions

Text Solution

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The correct Answer is:
D
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