Why is melting a physical change?गलन physical change क्यों है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Chemical composition does not changechemical composition नहीं बदलती
In melting solid becomes liquid but identity of substance remains same. Therefore it is physical change.Melting में solid liquid बनता है पर substance की identity same रहती है। इसलिए यह physical change है।
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