Question

Plz..... Help me to solve this paper
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Answer 1

Answer:

1. we paint objects of iron to prevent them from rusting
2. nitrogen is filled in those containers with fats to prevent the fats from going bad due to germs and other factors that spoil the fats. this is because nitrogen is a gas that does not react
3. for a it's rusting b is emulsion

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Answer 2

Answer:

sorry I will help only one !!9a)

Explanation:

rusting of iron is a redox reaction . when iron is exposed to the environmental condition it terribly reacts with water or air and ends up with iron rusting.iron article are therefore painted off so that iron can not react with water or air...

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