Question:

AgCl dissolves in $NH_4OH$ due to the formation of

Updated On: Jul 27, 2022
  • $[Ag(NH_4)_2]Cl$
  • $[Ag(NH_4)_3]Cl$
  • $[Ag(NH_3)_2]Cl$
  • $[Ag(NH_3)_2]OH$
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The Correct Option is C

Solution and Explanation

$ {$\underset{\mathrm{White\,ppt}}{ {AlCl(s)}}$ 2NH_4OH(aq) -> $\underset{\mathrm{Soluble \, complex}}{ {[Ag(NH_3)_2]Cl (aq)}}$ 2H_2O(l)}$
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Concepts Used:

Coordination Compounds

A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.

Coordination entity:

A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.

Ligands:

A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.