A solution reacts with crushed-egg shells to give a gas that turns lime water milky. The solution contains

  • (a) NaCl
  • (b) HCl
  • (c) LiCl
  • (d) KCl


Answer :

Egg shells contains calcium carbonate, which on reaction with HCl liberates CO2 gas which turn lime water to milky.
Therefore, Solution would be
Ans: (b) HCl

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