Gaseous State

Step 1: Purpose of gas in food packets.
To prevent spoilage and oxidation, an inert atmosphere is required inside sealed food packets.
Step 2: Gas used.
Nitrogen gas (N ) is used because it is inert, does not react with food, and displaces oxygen which causes oxidation and spoilage.
Step 3: Conclusion.
Thus, the gas present in food packets is (C) N .