Which one of the following compounds will be soluble in water?
A)AgBr
B)Cu(OH)₂
C)NH₄Cl
D)CaCO₃
E)PbS

Question

Quizplus · Accepted Answer

NH₄Cl is a salt composed of a cation (NH4+) and an anion (Cl-) and is therefore soluble in water due to the ability of water molecules to surround and stabilize the individual ions. AgBr and PbS are insoluble in water due to their low solubility product constants (Ksp). Cu(OH)₂ is insoluble in water due to the low solubility product constant of Cu(OH)₂ and the fact that the OH- ions produced by the compound can lead to the formation of insoluble Cu(OH)2 precipitates. CaCO₃ is also insoluble in water due to its low solubility product constant (Ksp).

Which One of the Following Compounds Will Be Soluble in Water