1.

Explain the following terms with one example each . (a) Corrosion (b) Rancidity

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Solution :(a) Corrosion: The SLOW eating up of metals by the REACTION of some atmospheric gases like oxygen,carbon-dioxide or water vapour is known as corrosion .
E.g: The copper articles get coated with green colour which is due to the formation of basic copper carbonate .
(b) Rancidity : Rancidity may be DEFINED as the naturaloxidation of the oils andfats, which are present in food items , giving bad SMELL and taste .
E.g.: Food items, containing fats and oils, give bad smellwhen they exposed to AIR for a long time .


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