A soln reacts with crushed egg-shells to give a gas that turns lime water milky.The soln contains:-
A)NaCl B)HCl C)LiCl D)KCl
Egg shells contain CaCO3, only an acid will release CO2 which turns lime water milky from CaCO3 so it is HCl
The reaction will proceed as
CaCO3 + 2HCl CaCl2 + CO2 + H2O
When CO2 is passed through lime water in small amount then lime water turns milky, due to formation of Calcium carbonate.
CO2 + Ca(OH)2 → CaCO3 + H2O
The process of testing CO2 by passing through lime water is known as carbonation.
The reaction will proceed as
CaCO3 + 2HCl CaCl2 + CO2 + H2O
When CO2 is passed through lime water in small amount then lime water turns milky, due to formation of Calcium carbonate.
CO2 + Ca(OH)2 → CaCO3 + H2O
The process of testing CO2 by passing through lime water is known as carbonation.