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Write the chemical equations whenon dioxide gas is passed through lime water:3()In small amount |
Answer» <p>When carbon dioxide is passed through lime water which is a diluted solution of Ca(OH) 2, it turns milky due to the formation of calcium carbonate which is CaCO3.</p><p>The reaction is like this:</p><p>Ca(OH) 2 + CO2 → CaCO3 + H2O</p><p>If you pay a little more attention, you will be able to observe that it is a neutralization reaction, where base is Ca(OH)2 and acid is H2CO3 and a salt CaCO3 and H2O are formed.</p><p>So, actually the above reaction is a short form of actual reaction.</p><p>Actually CO2 is no more CO2 after dissolving in water, it becomes H2CO3 via addition reaction as shown :</p><p>CO2+H2O→ H2CO3</p><p>Now, this CaCO3 is insoluble in water which is the reason behind the milkiness of solution.</p><p>Hit like if you find it useful!</p> | |