GENERAL KNOWLEDGE

Detailed explanation-1: -Its basically an oxidation reaction which involves chemical reactions so the phenomena is a chemical change.

Detailed explanation-2: -The browning can change the taste and texture of fruit, as well as how it looks. This browning is due to a chemical reaction with oxygen in the air, and it may be responsible for up to half of all food waste.

Detailed explanation-3: -Oxygen in the air can cause sliced fruit to brown, a process called enzymic browning (an oxidation reaction). Phenols and the enzyme phenolase are found in the cells of the apple, and when these are exposed to oxygen in the air, for example through slicing, the oxygen causes a reaction.

Detailed explanation-4: -Why Apples Turn Brown. When an apple is cut, oxygen is introduced into the plant tissue and a chemical reaction called oxidation occurs. Apples contain an enzyme called polyphenol oxidase (PPO). When this enzyme comes in contact with oxygen, it turns colorless compounds into a brown pigment called melanin.

Detailed explanation-5: -Apples turn brown because of a chemical reaction called “oxidation", which is caused by oxygen from the air. Oxygen is one of the most reactive chemicals known, and there are many kinds of oxidation reactions.