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17. Which of the following changes are called physical changes?A. Stretching of rubber bandB. Formation of curd from milkC. Cutting of paperD. Raw tomato to ripened tomato * |
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Answer» a , c EXPLANATION:a. because it's DUE to the potential energy in the rubber band and it's an example of motionc.cutting of paper is ALSO a physically done assignmentWhereas curd FORMATION is due to the chemical reaction with the microbes and phermentationand RIPENING of tomato is a chemical change as it is irreversible.. |
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