Question

The substance that can be oxidised easily can be kept for longer duration by :

Answer 1

By using antioxidants.

Principle :

The presence of antioxidants will absorb O2 molecules . Thus there would not be enough O2 to oxidise the substance that can easily be oxidised.

Eg of antioxidants :

• BHA ( Butylated Hydroxile Anisole )
• BHT ( Butylated Hydroxile Toluene )
• N2 gas ,etc

These substances can also be preserved for longer duration by :

• keeping them away from sunlight
• keeping them in refrigerator , etc

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