Question

Give scientific reasons
1. when the gas formed on heating limestone is passed through freshly prepaid lime water,the lime water turns milky? please ans it fast.​

Answer 1

Answer:

The Gas formed on heating limestone is Carbon dioxide. When this gas is passed through lime water, it forms Calcium Carbonate or limestone which turns milky.

Answer 2

Answer:

The Gas formed on heating limestone is Carbon dioxide. When this gas is passed through lime water, it forms Calcium Carbonate or limestone which turns milky.

Reaction for the above is-

When Limestone is heated,

CaCO

3

→CaO+CO

2

.

(limestone)

When Carbon Dioxide is passed through lime water,

CO

2

+Ca(OH)

2

→CaCO

3

↓+H₂O.

(lime water)

Reason :

When Carbon dioxide is passed through Lime water or Calcium Hydroxide, it turns milky due to the formation of the Precipitate of the insoluble milky Calcium Carbonate.