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प्रश्न
Match the following:
| Colum I | Column II | ||
| 1. | Alloying | a. | Exothermic change |
| 2. | Crystallization | b. | Periodic change |
| 3. | Soap powder + water | c. | Mixing of molten solids |
| 4. | Seasonal changes | d. | Pure solid |
जोड़ियाँ मिलाइएँ
उत्तर
| Colum I | Column II | ||
| 1. | Alloying | c. | Mixing of molten solids |
| 2. | Crystallization | d. | Pure solid |
| 3. | Soap powder + water | a. | Exothermic change |
| 4. | Seasonal changes | b. | Periodic change |
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