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Which change changes only the form of a substance?कौन सा बदलाव केवल पदार्थ के रूप को बदलता है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Water becoming iceजल का बर्फ बनना
Water becoming ice is only a state change. Exam tip: if form changes but substance remains same it is physical.जल का बर्फ बनना केवल अवस्था परिवर्तन है। परीक्षा में रूप बदले पर पदार्थ वही रहे तो भौतिक परिवर्तन है।
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