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Assertion: Crystalline solids have a sharp melting point.
Reasoning: In crystalline solids, the constituent particles are arranged in a highly ordered and repeating pattern. Therefore, when heat is applied, the particles begin to vibrate faster and faster until they reach a critical temperature at which the forces holding them in their positions are overcome, and the solid melts.
Both the assertion and reasoning are true, and the reasoning is the correct explanation for the assertion.
Both the assertion and reasoning are true, but the reasoning is not the correct explanation for the assertion.
The assertion is true, but the reasoning is false.
The assertion is false, but the reasoning is true.
Answers (1)
a) Both the assertion and reasoning are true, and the reasoning is the correct explanation for the assertion.
The ordered arrangement of particles in crystalline solids results in a sharp and well-defined melting point.
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