3
QuizMultiple Choice

Safety in Science

Question 3 • TX-Chemistry A

What is the best reason for a student to remove a dangling bracelet when heating test tubes of acidic solutions in a hot-water bath in a chemistry lab?

Answer
A
to avoid reactions of the metal with gases in the lab
B
to reduce the risk of burns from heat conducted through the metal
C
to minimize the chance the bracelet pulling over a test tube, causing a spill
D
to prevent misreading the temperature of the bath on a thermometer

Explanation

A dangling bracelet can catch on or pull over a test tube while the student is working, spilling the acidic solution. Removing it reduces that accident risk. The bracelet is not being heated directly, so avoiding heat conducted through the metal is not the main reason.

AI-written and checked against the verified answer.

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