Give scientific reasons.
a.When the gas formed on heating limstone is passed through freshly prepared lime water, the lime water turns milky.
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Carbon dioxide.
When Carbon dioxide is passed through Lime water or Calcium Hydroxide, it turns milky due to the formation of the Precipitate of the insoluble milky Calcium Carbonate.
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When carbon dioxide is passed through lime water, the Carbon dioxide reacts with calcium hydroxide to form Calcium carbonate which is a white precipitate, then lime water turns milky as there is formation of calcium carbonate.
CaCo3→ CaO +CO2CO2+ Ca(OH)2→CaCO3