A solution reacts with crushed eggshells to give a gas that turns lime-water milky. The solution contains a) NaCl (b) HCl (c) LiCl (d) KCl
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
The answer is HCl.
Eggshells contain calcium carbonate, which on reaction with HCl, liberates CO2 gas, which turns lime water into milky.
CaCO3 + 2HCl → CaCl2 + H2O + CO2
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