. A student comes to know that food companies fill nitrogen gas in the bags of chips. What is the purpose of packing it with nitrogen gas? *
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Explanation:
Potato chip bags are not full of air, but of nitrogen gas. This is done to prevent the chips from oxidizing, which is part of what makes them go stale. Oxygen is very reactive, and likes to combine with other molecules whenever it can, causing chemical changes to take place.
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