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What is the basic chemical cause of rancidity of oils and fats?

Answer and explanation

Correct answer: Oxidation

Oils and fats, especially unsaturated fats, undergo oxidation on exposure to oxygen in air. This produces compounds with an unpleasant smell and taste, causing rancidity. Hydrolysis may break down fats, but oxidation is the main cause of usual rancidity in oils and fats. Exam tip: Nitrogen is filled in chip packets to reduce oxidation.

Related tags

Class 10 ScienceChemical ReactionsRancidityOxidationOils And Fats

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