Give two points to distinguish between fresh tap water and distilled water.
(i) Fresh tap water has a specific taste due to the presence of dissolved salts in it while distilled water has a flat taste.
ii) Tap water contains chloride ions due to the presence of dissolved chlorine. Hence tap water gives the white precipitate with silver nitrate solution. Distilled water does not give a white precipitate with silver nitrate solution indicating the absence of chloride ions.
What properties of water make it useful as a solvent? What type of compounds can it: (i) dissolve and (ii) hydrolyse?
What are the ways in which water molecules are bound to an anhydrous salt to form a hydrate?