A house wife wantend her house to be white washed on adding quick lime to water she noticed that the water started boiling
a)give reason for her observation
b)write the corresponding chemical equation
c)name the product formed
Answers
Answered by
7
A suspension of slaked lime (also called calcium hydroxide) is formed when water is added to quicklime.
CaO +H2O ----------> Ca(OH)2 +heat
Since, the reaction is highly exothermic, the solution started boiling although it was not being heated. The suspension of slaked lime is allowed to cool for some time, preferably overnight.
It is then decanted and the liquid obtained is used for white washing.
CaO +H2O ----------> Ca(OH)2 +heat
Since, the reaction is highly exothermic, the solution started boiling although it was not being heated. The suspension of slaked lime is allowed to cool for some time, preferably overnight.
It is then decanted and the liquid obtained is used for white washing.
Similar questions