A fresh apple when cut turns brown after some time because of a :

structural change

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biological change

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chemical change

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physical change

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Solution

The correct option is C chemical change
When an apple is cut by knife oxygen from air comes in contact with it and rapidly oxidize phenolic compounds naturally present in the apple tissues to o-quinones, which turns it brown.

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A fresh apple when cut turns brown after some time because of a :

The correct option is C chemical changeWhen an apple is cut by knife oxygen from air comes in contact with it and rapidly oxidize phenolic compounds naturally present in the apple tissues to o-quinones, which turns it brown.

The correct option is C chemical change
When an apple is cut by knife oxygen from air comes in contact with it and rapidly oxidize phenolic compounds naturally present in the apple tissues to o-quinones, which turns it brown.