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QJEEM03Ch966b: JEE Main 2003 Chemistry - Class 12 JEEM03Ch966b Solution: Ammonia forms the complex ion [Cu(NH 3 ) 4 ] 2+ with copper…
Ammonia forms the complex ion [Cu(NH3)4]2+ with copper ions in alkaline solutions but not in acidic solutions. What is the reason for it?
Multiple Choice Options
- A In acidic solutions protons coordinate with ammonia molecules forming ions and NH3 molecules are not available
- B In alkaline solutions insoluble Cu(OH)2 is precipitated which is soluble in excess of any alkali
- C Copper hydroxide is an amphoteric substance
- D In acidic solutions hydration protects copper ions.
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