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Give scientififc reasons When the gas ...

Give scientififc reasons
When the gas formed on heating limestone is passsed through freshly prepared lime water,the lime water turns milky.

Text Solution

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When limestone is heated, calcium oxide and carbon dioxide gas are formed.
`underset(underset("carbonate")"Calcium")(CaCO_(3(s)))+Heat rarr underset(underset("oxide")"Calcium")(CaO_((s)))+underset(underset("dioxide")"Carbon")(CO_(2)uarr)`
II.When carbon dioxide gas is passed through freshly prepared lime water, the solution turns milky due to the formation of calcium carbonate, which is insoluble in water.
`underset(underset("hydroxide")"Calcium")(Ca(OH)_(2(aq)))+underset(underset("dioxide")"Carbon")(CO_(2(g)))rarrunderset(underset("carbonate")"Calcium")(CaCO_((s)))+underset("Water")(H_2O_((l)))`
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