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 process are responsible for (a) and (b)
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Answer 1

Answer:

a) We paint objects made up of iron to prevent it from rusting.

b) Food products containing fats and oils are packaged in nitrogen so that there is no oxygen to cause oxidation of food and make it rancid.

Explanation:

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Answer 2

The correct answers to the questions are -

(a) The objects made up of iron need to be painted to prevent corrosion on the iron objects.

(b) To avoid oxidation that can affect the freshness, colour and smell of food, nitrogen gas is filled in packets containing oil and fats.

(c) The process responsible for a is corrosion and for b is oxidation