किस परिवर्तन में नया पदार्थ नहीं बनता?
In which change is no new substance formed?
Explanation opens after your attempt
B. बर्फ का पिघलनाMelting of ice
Concept
Melting of ice involves only state change. Chemical identity remains same.
Why this answer is correct
The correct answer is B. बर्फ का पिघलना / Melting of ice. Melting of ice involves only state change. Chemical identity remains same.
Exam Tip
Ice melting में केवल state change होता है। Chemical identity same रहती है।
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