If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true

Question

If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid?
 A. 
The solid is a pure substance.
 B. 
The solid is a mixture.
 C. 
The solid is an element.
 D. 
The solid has three boiling points.

GPT-5 mini · Answer

B. The solid is a mixture.

Reason: A pure substance melts at a single, well-defined temperature. Different melting temperatures indicate more than one component, so the sample must be a mixture.

If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid?
A.
The solid is a pure substance.
B.
The solid is a mixture.
C.
The solid is an element.
D.
The solid has three boiling points.

All Answers 1

Submit Your Answer

If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid? A. The solid is a pure substance. B. The solid is a mixture. C. The solid is an element. D. The solid has three boiling points.

All Answers 1

Submit Your Answer

If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid?
A.
The solid is a pure substance.
B.
The solid is a mixture.
C.
The solid is an element.
D.
The solid has three boiling points.