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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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.
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Bhangar is composed of lime nodules which are also called kanker. It has a clayey composition. The khadar is light in colour and consists of newer deposits. Khadar soil is more fertile than Bhangar as it gets replenished by new layers of soil every year during monsoon floods.
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