Question

2. a) 1 A solution reacts with crushed egg shells to give a gas that turns lime water milky. The solution contains a) NaCl b) HCI c) Lici Sodium carbonate is a basic salt because it is a salt of d) KC 3.​

Answer 1

Answer:

Crushed egg-shells contain calcium carbonate (CaCO3). Calcium carbonate (CaCO3) on reaction with HCl liberates CO2 gas. CO2 gas turns lime water (Ca(OH)2) to milky because it will form the calcium carbonate again, which is a white precipitate.