For making potato fries, you slice the potatoes (process 1) and deep fry it in oil (process 2). What type of changes are there in the two processes?
A
Process A− Physical change, Process B− Chemical change
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B
Process A− No change, Process B− Physical change
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C
Process A− Chemical change, Process B− Physical change
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D
Process A− Chemical change, Process B− Chemical change
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Solution
The correct option is A Process A− Physical change, Process B− Chemical change During a physical change, no new substances are formed, whereas in a chemical change, new substances are formed with new chemical composition and properties.