Write two observations you make when quicklime is added to water


#1

The following two observations we would make when quicklime is added to water:
(i) A hissing sound is observed.
(ii) The mixture starts boiling and lime water is obtained.

Note Most metal oxides are insoluble in water but some of these (e.g. Na2O.CaOetc) dissolve in water to form alkalies not salt and acids.