3. Effects of Oxidation Reactions in Everyday Life

EFFORTS OF OXIDATION REACTIONS IN EVERYDAY LIFE

1)  COROSION :-    When a metal is exposd to moisture ,air, acid eyc. For some time , a layer of hydrated oxide, is formed which e weaknes the metal and hence metal is said to be corroded.

Example of corrosion are:-

1. Rusting of iron .
2. Black coating on silver
3. Green coating on copper.

• Rusting of iron :-    when iron is exposed to oxygen in the presence of  moisture, reddish brown power is formed.

This is process is knon as rusting of iron.

• Method to prevent corrosion are:-  

1. Galvanization
2.  Electroplating
3. By putting paints

2) RANCIDITY:-    The oxidation of fats and oils when exposed to air is known as rancidity . due to rancidity, bad smell and bad taste of food occurs

Method of prevent rancidity are :-

1. By adding antioxidants.
2. Refrigeration. 
3. Replacing air by nitrogen.
4. Keeping food in air tight containers.

•  Chips manufactures fill bag of chips with nitrogen because it is non reactive gas and it prevent the chips from getting oxidized.