question_answer

Sahil took a white solid from his teacher to find out its melting point. During the experiment, he found that the melting point was \[\text{160 }\!\!{}^\circ\!\!\text{ C}\]. But, the teacher told him that actual melting point of the solid is \[\text{150 }\!\!{}^\circ\!\!\text{ C}\]. What could be the reason for Sahil's observation?

A) Melting point of a solid depends upon the procedure and the amount taken.

B) Solids can have different melting points depending upon the method of storage.

C) The solid contains some impurities mixed with the pure compound.

D) If solid is heated strongly, the melting point increases.