Question

give some methods to prevent corrosionand rancidity​

Answer 1

Answer:

Corrosion

Painting the metal surfaces.

Powder coating the surfaces.

Oiling the metal surfaces.

Galvanization – It is the process of applying a protective zinc coating to iron or steel articles, to prevent them from rusting.

Rancidity

Adding antioxidants (substances which prevent oxidation) to food.

Storing food in airtight containers to slow the process of rancidification.

Refrigerating food also helps to slow down rancidification.

Replacing oxygen in the containers with another gas. For example, to prevent chips from turning rancid, chips manufacturers flush the bags with nitrogen gas.

Answer 2

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Actually,Welcome to the concept of redox reactions :-

Redox reactions :-

The reaction in which the oxidation and reduction taking place simultaneously is called redox reaction.

Corrosion :- The phenomenon of conversion of a metal in to undesirable compound by action of moisture,oxygen etc is called corrosion.

To prevent corrosion we apply some methods :-

• By using grease and oils on the surface of metals.
• By painting the surface.
• By galavinization.
• By tinning the iron articles.

Rancidity :- The phenomenon of oxidation of food containing oil or fats to gives foul smell is known as rancidity.

To prevent the food material from rancidity:-

• By using antioxidants.
• By flushing food material with nitrogen gas.
• By lowering it's temperature.
• By vacuum packaging.