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What is the main identification of a physical change?भौतिक परिवर्तन की मुख्य पहचान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Only form or state changesकेवल रूप या अवस्था बदलती है
In a physical change the chemical identity does not change. Exam tip: treat change of state as physical change.भौतिक परिवर्तन में पदार्थ की रासायनिक पहचान नहीं बदलती। परीक्षा में अवस्था परिवर्तन को भौतिक परिवर्तन मानें।
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