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प्रश्न
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains ______.
विकल्प
NaCl
HCl
LiCl
KCl
उत्तर
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains HCl.
Explanation:
Egg-shells contain calcium carbonate. Calcium carbonate reacts with HCl to give out CO2 gas, which turns lime water milky.
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