why the colour of onion is changed when it is left outside after cutting it
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Answer:
DUE TO CHEMICAL CHANGE
Explanation:
FRUITS AND VEGETABLES WHICH ARE RELEASED WHEN THEY ARE CUT. WHEN THESE ENZYMES COME IN CONTACT WITH AIR, THEN THEIR COLOUR CHANGES. NOT ONLY ONION CHANGES ITS COLOUR BUT FRUITS LIKE APPLE ALSO CHANGE COLOUR WHEN LEFT IN AIR FOR SOMETIME.
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