Question

What is electrochemical series? Explain its applications with suitab
examples.
K. What is Corrosion? Explain different types of Corrosions?​

Answer 1

Answer:

Electrochemical series also sometimes referred to as activity series is a list that describes the arrangement of elements in order of their increasing electrode potential values. The series has been established by measuring the potential of various electrodes versus standard hydrogen electrode (SHE).

For example, (a) Alkali metals and alkaline earth metals having high negative values of standard reduction potentials are chemically active. These react with cold water and evolve hydrogen. These readily dissolve in acids forming corresponding salts and combine with those substances which accept electrons.

Corrosion is a natural process that converts a refined metal into a more chemically stable form such as oxide, hydroxide, or sulfide. It is the gradual destruction of materials by chemical and/or electrochemical reaction with their environment.

There are five general types of corrosion: galvanic, stress cracking, general, localized, and caustic agent corrosion. Galvanic corrosion is extraordinarily common and occurs when two metals with different electrochemical charges are linked via a conductive path.

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Answer 2

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Electrochemical series is a series of chemical elements arranged in order of their standard electrode potentials.

Eg. These metals, such as copper and gold, are used to make coins and jewelry and are called noble metals because of their low reactivity. The elements in the electrochemical series are arranged in order of their standard electrode potentials.

Corrosion is a natural process that converts a refined metal into a more chemically stable form such as oxide, hydroxide, or sulfide. ... This type of damage typically produces oxide(s) or salt(s) of the original metal and results in a distinctive orange colouration.

There are five general types of corrosion: galvanic, stress cracking, general, localized, and caustic agent corrosion. Galvanic corrosion is extraordinarily common and occurs when two metals with different electrochemical charges are linked via a conductive path.

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