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What is the scientific reason for filling potato chips packets with nitrogen gas?

Answer and explanation

Correct answer: To reduce oxidation of the oil and prevent rancidity

The oils and fats in chips can react with oxygen and become oxidised, causing rancidity and an unpleasant taste or smell. Nitrogen is comparatively unreactive; it displaces oxygen in the packet and reduces oxidation of the oil. In contrast, increasing the oxygen content would promote oxidation.

Related tags

ScienceClass 10Chemical ReactionsRancidityNitrogenOxidationFood Preservation

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