Question:
Which one of the following statements is NOT correct?
Which one of the following statements is NOT correct?
Options:
- The interconversion of states of matter is a physical change
- During burning of a candle, both chemical and physical changes take place
- During a physical change, the chemical composition of molecules changes
- Rusting of iron is a chemical change
- The interconversion of states of matter is a physical change
- During burning of a candle, both chemical and physical changes take place
- During a physical change, the chemical composition of molecules changes
- Rusting of iron is a chemical change
Correct Answer: During a physical change, the chemical composition of molecules changes
Explanation:
Physical change is the interconversion of states of matter in which only physical state of the substance changes, no changes in the chemical composition is observed.
Physical change is the interconversion of states of matter in which only physical state of the substance changes, no changes in the chemical composition is observed.