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(1) Give an example for each of the following with proper explanation: a) A physical change which is reversible. b) A chemical change in which change of colour is observed. (2) How would you show that setting of curd is a chemical change? [3 MARKS] |
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Answer» (1) Give an example for each of the following with proper explanation: a) A physical change which is reversible. b) A chemical change in which change of colour is observed. (2) How would you show that setting of curd is a chemical change? [3 MARKS] |
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