Question

When the gas formed on heating limestone is passed through freshly prepared lime water,the lime water turns milky. Give scientific reason.

Answer 1

Because The Gas(CO2) has a test that when it is passed through a freshly prepared lime water it will turn milky. Lime Water turns milky when you pass carbon dioxide through it because a reaction that produce a white precipitate takes place.



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Answer 2

$\large\boxed{\fcolorbox{blue}{yellow} {Answer}}$

1. When limestone is heated, calcium oxide and carbon dioxide are formed.

2. This carbon dioxide gas is passed through freshly prepared lime water, insoluble calcium carbonate and water are formed.

In this reaction, lime water turns milky.

$\large\boxed{\fcolorbox{blue}{yellow} {Chemical Equation }}$

Ca(OH)2 + CO2 ⟶ CaCO3 ↓ H2O

Calcium Carbon Calcium Water

Hydroxide dioxide carbonate

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