Question

In an experiment to determine the boiling point of water, state reason for the following

precautions:-(i) The bulb of thermometer should not touch the sides of beaker.(ii) While boiling water, pumice stones should be added.

Answer 1

1. As it would not give the accurate temperature of the water
2. Note: Pieces of pumice stone are added to water before heating to avoid bumping of liquid when the temperature rises. When water boils it releases energy as bubbles. If the bubbles do not form, the water can super heat and possibly explode.

Answer 2

Answer:

Explanation:

Here's the answer