Why is melting of ice not a chemical change?
Answer and explanation
Correct answer: Only the state changes
Ice and liquid water are the same substance, H₂O. During melting, the particles gain energy and change from an ordered solid state to a liquid state, but their chemical composition and identity remain unchanged. The process is reversible by freezing, so it is a physical change. Option C is correct; no new gas, precipitate, or substance is produced.
Frequently asked questions
What is the correct answer to this question?
Only the state changes
Why is this the correct answer?
Ice and liquid water are the same substance, H₂O. During melting, the particles gain energy and change from an ordered solid state to a liquid state, but their chemical composition and identity remain unchanged. The process is reversible by freezing, so it is a physical change. Option C is correct; no new gas, precipitate, or substance is produced.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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