True / False 1. During physical change, the molecules of the substance remains unchanged. โก2. During chemical change heat is absorbed or released. โก3. Formation of sugar from sugar solution is chemical change. โก4. Steel rust easily. โก 5. Digestion is a physical change.โก
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question 1 : true
question 2 : true
question 3 : false
question 4: false
question 5 : false
question 2 : true
question 3 : false
question 4: false
question 5 : false
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