Question

1. according to your solubility rules, which of the following salts has the greatest solubility in water at 25°c?

options: naclo, mgs, hg₂br₂, srco₃

Explanation:

1. Salts containing group 1 cations (like Na⁺) and chlorate ions (ClO₃⁻) are highly soluble in water.
2. Hg₂Br₂ is an insoluble halide salt (mercury(I) compounds are mostly insoluble).
3. MgS is an insoluble sulfide salt (sulfides of most transition and group 2 metals are insoluble).
4. SrCO₃ is an insoluble carbonate salt (carbonates of group 2 metals except beryllium are insoluble).

Answer:

A. NaClO