Question

What chlorides are insoluble?

Answer 1

Silver, lead, and mercurous chlorides.

Explanation:

`K_(sp)` for `AgCl` is `1.8xx10^-10`, for `PbCl_2`, `5.9xx10^-5`, for `Hg_2Cl_2`, `1.3xx10^(-18)`. Cuprous chloride is also reasonably insoluble, `K_(sp)` `=` `1.72xx10^-7`, but it does not generally appear on the standard tables of solubility.