A student dropped few pieces of marble in dilute hydrochloric acid, contained in a test gas was then passed through limewater. What change would be observed in limewater? dropped few pieces of marble in dilute hydrochloric acid, contained in a test gas was then passed through limewater. What change would be observed in limewater? dropped few pieces of marble in dilute hydrochloric acid, contained in a test-tube. This evolved
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Answer
Explanation:
Marble is Calcium Carbonate (CaCO3) Calcium carbonate when added to HCl gives Calcium Chloride, Water and Carbon Dioxide. CaCO3 + HCl --> CaCl2 + H2O + CO2 When this gas (which is CO2) is passed through lime water, Lime water turns milky due to the formation of CaCO3 and H20.