CHEMISTRY · Single correct · ICSE · Chemistry · Water · Water
Problem
Pick the wrong statement:
(1) Hygroscopic and deliquescent salts are highly soluble in water.
(2) The vapour pressure of water in a hygroscopic substance in solution is lower than the humidity of air.
(3) Efflorescent crystals have a higher vapour pressure of water than the humidity of air.
(4) For isotonic solutions, the concentrations of two solutions must always be the same.