Chemistrymedium · Past Paper
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains:
ANaCl
BHCl
CLiCl
DKCl
✓ Correct Answer: B — HCl
Egg shells are made of calcium carbonate. HCl reacts with it to release CO2, which turns limewater milky.
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