Question

what is corrosion and racidity ? how can you prevent from them​

Answer 1

when air is react with iron and oxidised it this reaction is called corrosion

when air is react with most oily food and after oxidation the smell is spoiled out

this reaction is called rancidity

Answer 2

CORROISON

Effects of Corrosion. ... Corrosion is also a chemical reaction in which metal reactions with atmospheric moisture and oxygen gas to form metallic oxides. That is the reason, metals corrode quickly. Metallurgy is the process of conversion of metallic ores to metal as metals are usually found in combined state in nature.

PREVENTION.

Ways to Prevent Corrosion of Metal Parts

Design. Corrosion control begins at the engineering stage.

Protective Coating. Coatings can provide a layer of protection against corrosion by acting as a physical barrier between the metal parts and oxidizing elements in the environment.

Environmental Control. ...

Cathodic Protection. ...

Maintenance.

RANCIDITY.

Rancidity is the complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air, light, or moisture or by bacterial action, resulting in unpleasant taste and odor.

PREVENTION.

It can be prevented by following methods: (i) The packing of food materials should be replaced the air with Nitrogen. (ii) The food materials should be placed at very low temperatures. (iii) Addition of antioxidants also prevents rancidity process.