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3 Beginner
2 Intermediate
Question 1 of 5
Score: 0/—
★★☆ Intermediate
A chemist in Lahore is testing a sample of sucrose. She observes it begins to melt at 180°C and fully melts at 185°C. What does this observation suggest about the sucrose sample?
A
It is a pure sample of sucrose.
B
It contains impurities.
C
The thermometer used is inaccurate.
D
The pressure in the laboratory is too high.