ScienceCLASS 10CBSE
answered 27 Mar 2026A 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
A.VERIFIED ANSWERfact-checked by tutors
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