Question

the substance which get oxidised easily can be longer duration by​

Answer 1

Explanation:

The substances which get oxidised easily can be kept for longer duration by: (a) Adding oxygen and keeping them in sun for few days.

Answer 2

Adding nitrogen and keeping them in airtight containers.

Adding oxygen would not help because addition of oxygen is oxidation itself. Thus, substance would easily get oxidised which we don't have to do here.

Keeping them open in sun also helps in oxidation hence we won't keep them open in sun.

Nitrogen gas acts inert and thus is a good antioxidant. Keeping substance in airtight containers with nitrogen added in container would prevent oxidation. Thus, option d is our answer.

Hope it helps..

Please Mark as brainliest answer if you are satisfied..

Thank you..