Question

Explain lime water experiment.

Answer 1

Steps of the lime water experiment are as follows -

Procedure:

• Two jars are taken. One jar with normal water and another jar with lime water.

• Both the jars are closed with a two holed stopper. A connecting tube which is elongated towards one end is inserted into the jar as shown in the image.

• An L shaped tube is inserted into the jar through another hole for the exhaled air to go out as shown in the image.

• Air is blown for a few minutes through the pipe.

Observation:

• Lime water turns milky after the air is blown.

• There is no colour change in the normal water.

Conclusion:

• Air which we blow contains carbon dioxide. It reacts with the lime water and calcium carbonate is formed. This turns the lime water milky.