Question

Why do we need to turn off stirring to check for boiling in Lab ?

a) To save energy
b) To prevent accidents
c) To speed up the reaction
d) To improve mixing

Answer 1

Stirring is turned off when checking for boiling point in a lab to avoid splattering and ensure a clear view of the boiling point without interference, ensuring the accuracy of the experiment.

Step-by-step explanation:

We need to turn off stirring when checking for boiling in a lab because stirring can cause splattering, which makes it difficult to observe the true boiling point. Stirring can also cause bumps in the liquid being heated, potentially leading to inaccurate readings or dangerous spills.

By turning off the stirring, we ensure a more stable and clear environment to accurately determine the boiling point. This is important for the precision of the experiment and safety in the lab. It is not related to saving energy, preventing accidents, speeding up reactions, or improving mixing, which are incorrect options in this context.