Q. Which one of the following is a physical change?
A) Burning of wood
B) Burning of coal
C) Heating of potassium chlorate
D) Heating of a platinum crucible
✔ Correct Answer: Heating of a platinum crucible
Exam Insight
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A) Burning of wood
B) Burning of coal
C) Heating of potassium chlorate
D) Heating of a platinum crucible
✔ Correct Answer: Heating of a platinum crucible
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