AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Chips manufacturers flush bags with nitrogen gas to prevent oxidation (rancidity) of the chips. Nitrogen is inert and does not react with the food, keeping the chips fresh and crispy for longer.
Source: Chapter 4, Carbon and its Compounds
The passage mentions that saturated fats/oils can turn rancid due to oxidation. Nitrogen is used as an inert packaging gas to displace oxygen, preventing the chips (which contain fats/oils) from getting oxidised. Examiners expect the key words: inert, prevent oxidation/rancidity. One sentence with these two ideas earns full marks.