A solution react with crushed egg shells to give a gas that turns lime water milky the solution cintains
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Egg shells contains calcium carbonate, which on reaction with HCL liberates carbon dioxide gas which turns lime water milky.
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Question :
A solution produces a gas by reacting with egg shells, which turns lime water to milky. What will happen in this solution?
ANSWER :
Hydrogen chloride
Lime water turns milky and hence the gas is carbon-dioxide.
We already know that egg shells contain calcium carbonate .
Hence the only thing that can displace is HCl .
Thus the answer is HCl as only an acid can perform the above reaction and displace the calcium carbonate to liberate an acidic gas.
Reaction :
CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂
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