Explain the following terms with one example each.(a) Corrosion(b) Rancidity

As per the given question,

• Corrosion: it is the condition when metals come in contact with atmospheric moisture or chemicals and it results in the degradation of the metal which is called rust. For example- Rusting of Iron. Given below is the reaction of iron rusting:

2Fe + 3H₂ → Fe₂O_{3 +} 3H₂

Ferric oxide is formed in the reaction which is known as iron rust

• Rancidity: It is the condition in which oxygen reacts with oil of the food and alters the normal structure of food like change in colour, odour, taste. And it is recommended to not use that food for further consumption.

For example- when the chips packet gets interacted with moisture then its color, texture, taste get changed.

Final answer :

• Corrosion: it is the condition when metals come in contact with atmospheric moisture or chemicals and it results in the degradation of the metal which is called rust. For example- Rusting of Iron. Given below is the reaction of iron rusting:

2Fe + 3H₂ → Fe₂O_{3 +} 3H₂

Ferric oxide is formed in the reaction which is known as iron rust

• Rancidity: It is the condition in which oxygen reacts with oil of the food and alters the normal structure of food like change in colour, odour, taste. And it is recommended to not use that food for further consumption.

For example- when the chips packet gets interacted with moisture then its color, texture, taste get changed.