What is the benefit of filling nitrogen to prevent rancidity?
Answer and explanation
Correct answer: It reduces contact with oxygen
Rancidity mainly results from oxidation of oils and fats by oxygen. Replacing much of the air in a food packet with nitrogen reduces the amount of oxygen available to react with the food. Nitrogen is comparatively unreactive under these conditions, so option A is correct. It does not burn food, cause rusting, or convert food into a precipitate; those choices confuse preservation with unrelated processes.
Frequently asked questions
What is the correct answer to this question?
It reduces contact with oxygen
Why is this the correct answer?
Rancidity mainly results from oxidation of oils and fats by oxygen. Replacing much of the air in a food packet with nitrogen reduces the amount of oxygen available to react with the food. Nitrogen is comparatively unreactive under these conditions, so option A is correct. It does not burn food, cause rusting, or convert food into a precipitate; those choices confuse preservation with unrelated processes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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