Explain the following terms with one example each.
(a) Corrosion
(b) Rancidity
NCERT Solutions for Class 10th Science Chapter 1 Chemical Reactions and Equations Exercise 20
NCERT Class X
Science - Science
Chapter_Chemical Reactions and Equations
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a-corrosion
It is the process in which metals are slowly eaten up by the action of air moisture or chemicals.
(b) Rancidity
It is a process of oxidation in which fats and oils present in food items are oxidized that can be easily noticed by the change in their taste and smell.
It is the process in which metals are slowly eaten up by the action of air moisture or chemicals.
(b) Rancidity
It is a process of oxidation in which fats and oils present in food items are oxidized that can be easily noticed by the change in their taste and smell.
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Answer:
Corrosion is a natural process, which converts a refined metal to a more stable form, such as its oxide or hydroxide. It is the gradual destruction of metals by chemical reaction with their environment.
eg) Rusting, the formation of iron oxides is a well-known example of electrochemical corrosion.
Rancidity refers to the spoilage of food in such a way that it becomes undesirable and unsafe for consumption. It is the hydrolysis or autoxidation of fats into short-chain aldehydes and ketones which are objectionable in taste and odour.
eg) When rancidity occurs in food, undesirable odours and flavours can result. In some cases, however, the flavours can be desirable (as in age.
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