Question

hw can we prevent corrosion and rancidity ​

Answer 1

We can prevent corrosion by the following ways:

Galvanisation

Alloying

Tinning

Antirust solution

Electroplating

Anodising

Painting

We can prevent rancidity by the following ways:

Anti oxidants

Air tight container

Hope it helps you...

Answer 2

Yes can prevent rancidity by following ways:
i) By keeping oil and fat containing food in air tight containers
ii) By using anti oxidants like - B. H. A and B.H.T
iii)By preventing their exposure to air.

Prevention of corrosion
i) By painting and greesing on metal
ii) Avoid exposure to moisture

Hope it helps you
^_^