Question

Silver halide are least soluble in water through their lattice energy is almost the same order as that of highly soluble alkali metal halides.comment

Answer 1

Silver halide are least soluble in water through their lattice energy is almost the same order as that of highly soluble alkali metal halides

Explanation:

Alkali metals

• They are members of group 1 .
• It includes : Li,Na,K ,Rb,Cs

Halogens

• They are members of group 17 .
• It includes : F,Cl,Br,I

Alkali metal halides  

It is the  inorganic compounds with the chemical formula MX, where M is an alkali metal and X is a halogen.

Silver halide

It is formed when form element silver has one of the halogens attached .

Comparison in Solubilities of silver halide and alkali metal halides

There is a solubility fact in chemistry that is "Like dissolves like ".

That means polar compound will dissolves polar ,non polar will dissolves non-polar compound .

As we know , water is polar therefore it will dissolves polar compound which is Alkali metal halide in this case as it is ionic (polar) whereas silver halides has more covalent character in it that leads to polarization therefore it is comparatively less soluble .