Question

(a) Why do we paint objects made up of iron?

(b) Why is Nitrogen gas filled in food packets containing oil and fats?

(C) Which processes are responsible for (a) and (b)?​

Answer 1

Explanation:

a)Iron articles are painted to prevent them from rusting. After painting iron surface does not come in contact with moisture and air which cause rusting.

b)The supply of the nitrogen gas into the tank from the bottom thereof is effective to render the gaseous body within the space to be difficult to dissolve into the refined edible oils and fats while accomplishing an increase in concentration of the nitrogen within the space.

c)rusting

Answer 2

1 ) why do we paint objects made up of iron ?

Ans : because the objects which is painted of iron takes long time to rust

2 ) why is nitrogen gas filled in food packets containing oil and fats?

Ans : because nitrogen is in inert in nature and nitrogen gas is filled in food package containing oil and fats as the food item will not get spoiled

3 ) which progress are responsible for (a) and (b)

Ans : chemical process

hope this answer helps you ......