Why is a boiling tube made from special glass?
A boiling tube is a small cylindrical device that is used to rapidly heat items in a Bunsen burner's flame. Boiling tubes are made of high-temperature resistant borosilicate glass.
What is observed when a mixture of iron filings and sulphur is heated in a hard glass boiling tube?
when cathode discharge tube experiment is perforned under high voltage, why doesn't the glass tube melt ?