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If a question only asks why total mass did not change in a reaction what should be the answer?यदि कोई प्रश्न सिर्फ यह पूछे कि अभिक्रिया में कुल द्रव्यमान क्यों नहीं बदला तो उत्तर क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Conservation of massद्रव्यमान संरक्षण
Unchanged total mass directly indicates conservation of mass. Exam tip: choose conservation when mass remains same.कुल द्रव्यमान न बदलना द्रव्यमान संरक्षण का सीधा संकेत है। परीक्षा में why mass same आए तो conservation चुनें।
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