Answer :
Final answer:
Be careful when handling hot beakers with beaker tongs to avoid melting or burning the rubber parts on hot plates, which can release harmful fumes. Use beaker tongs correctly, holding the vessel away from the hot surface, and follow all safety procedures in the laboratory.
Explanation:
When using beaker tongs to handle hot vessels such as beakers on a hot plate, it is important to be careful not to allow the rubber parts of the tongs to contact the hot surface.
This is because the rubber can melt or burn, which might release unpleasant or harmful fumes, as suggested by the odd smell noticed by the student in the scenario.
It is recommended to use beaker tongs correctly by gripping the beaker higher up, away from the hot plate's surface, to avoid the potential for damaging the tongs or the beaker.
Always handle with caution, ensuring not to burn yourself, and following proper laboratory safety protocols such as never eating or drinking in the lab, using suitable heat protection like silicone hot hand protectors or paper towel holders when handling hot liquids, and keeping the work area well ventilated.
In addition, it is crucial to alert the teacher immediately if anything out of the ordinary occurs, such as the smell resulting from using the tongs improperly, as this could require safety measures and potentially an accident report.