Name: Conservation of Water
Uploaded: 2019-07-19
Duration: 5 min 9 s
Description: Water conservation is the practice of efficient usage of water by reducing unnecessary wastage of it. Let's explore various ways by which we can save water.

Question

Water containing salts is a good conductor of electricity. Give an activity to explain it.

Accepted Answer

Water containing salts is a good conductor of electricity, this can be shown by the following activity.

Materials required:- beaker, distilled water, thick cardboard, carbon rods, bulb, wires, cell, salt.

Procedure: Take some distilled water in a beaker. Now fix two carbon rods on the thick cardboard and place these over the beaker as shown in the following figure.

Connect the two rods to the bulb and the cell with the help of copper wires. The bulb does not light up. Now dissolve a spoonful of salt in water and repeat the experiment. The bulb lights up. Distilled water is a bad conductor of electricity but when salt is added, it becomes a good conductor and the bulb lights up. A salt forms ions in water, which helps to conduct electricity. Sometimes in the rainy season if an open electric wire touches a wet wall then we get an electric shock on touching the wall. The reason for this is the conduction of electricity by the water with salts from the wall.

Conclusion: Hence we can say that water containing salts is a good conductor of electricity.

Water containing salts is a good conductor of electricity. Give an activity to explain it.

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