Question

A chloride of a metal which is soluble in excess of ammonium hydroxide. What is the compound?

Answer 1

Hint: When fused or dissolved in water, most metal chlorides conduct electricity and may be electrolyzed to produce chlorine gas and the metal. Chlorine forms compounds with the other halogens and oxygen; the product is called a chloride when chlorine is the more electronegative element.

Complete answer:
A solution of ammonia in water has the chemical formula $N{H_4}OH$. Ammonia water, ammonium hydroxide, ammonia liquor, and aqueous ammonia are all names for the same solution. The symbol $N{H_3}$ (aq) is frequently used to represent $N{H_4}OH$.
Ammonia's solubility diminishes as the temperature of the aqueous solvent rises. This behaviour of ammonia may be seen to be pretty similar to that of other gases. With an increase in the concentration of dissolved ammonia, the density of the ammonia solution in water decreases.
Silver chloride, sometimes known as AgCl, is a chemical compound having the formula AgCl. The poor solubility of this white crystalline solid in water is widely recognised. Silver chloride transforms to silver (and chlorine) when exposed to light or heat, as seen by the grey to black or purple colouring of some samples. AgCl is found in nature as the mineral chlorargyrite.
Because of the creation of a complex, AgCl (silver chloride) is insoluble in water but soluble in excess ammonium hydroxide.
Because a high concentration of NH3 results in a high concentration of the complex ion in solution, the solubility of silver chloride in an aqueous ammonia solution is substantially greater than in water.
$2\;{\text{N}}{{\text{H}}_4}{\text{OH}} + {\text{AgCl}} \to \left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_3}} \right)}_2}} \right]{\text{Cl}}({\text{aq}}) + 2{{\text{H}}_2}{\text{O}}$

Note:
Ammonium hydroxide solution is a crucial component in the production of chemical fertilisers. In these fertilisers, it is applied as a solution or as salt.
Silver nitrate and related solutions, as well as powerful ammonia solutions, can irritate and burn the skin. When completing these tests, wear appropriate safety gear, such as gloves and glasses.