Answer :
Final answer:
In a m.p. determination, the sample is packed into the bottom end of the capillary tube to ensure direct contact with the heated surface.
Explanation:
In a m.p. (melting point) determination, the sample is packed into the bottom end of the capillary tube.
The capillary tube is a thin glass tube with a narrow opening at one end.
By packing the sample into the bottom end of the capillary tube, it ensures that the sample is in direct contact with the heated surface during the melting point determination.
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