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States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter3 Marks
Question
Why does sharp glass edge become smooth on heating it upto its melting point in a flame? Explain which property of liquids is responsible for this phenomenon.
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Answer

On heating glass melts and the surface of the liquid tends to take the round shape at the edges which has minimum surface area.

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