Ammonia forms the complexion `[Cu(NH_3)_4]^(2+)` with copper ions in alkaline solutions but not in acidic solutions. What is the reason for it?

Options

A. In acidic solutions hydration protects copper ions
B. In acidic solutions protons coordinate with ammonia molecules forming `NH_(4)^(+)` ions and `NH_3` molecules are pot available
C. In alkaline solutions insolubie `Cu(OH)_2` is precipitated which is soluble in excess of any aikali
D. Copper hydroxide iş an amphoteric substance

Answer

B

Explanation

This is because `NH_3` is not available as ligand in acidic solutions.
`NH_4 + H^(+)