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Write down any two precautions one must observe when boiling substances in test tubes in the lab​
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Write down any two precautions one must observe when boiling substances in test tubes in the lab​

User Akosicki
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One precaution could be to always wear safety classes. Another can be heat the teat tube being held at an angle so there is a way for the gases produced to escape safely.
User Anurag Misra
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