The main factors which affect corrosion are :

Position of metal in electrochemical series

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Presence of

C O_{2}

in water

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Presence of impurities coating

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All are correct

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Solution

The correct option is D All are correct
Corrosion is a process in which the metals react with the atmosphere and weakens the metal.
The main factors that effect corrosion are
(i) Presence of a protective coating.
(ii) Presence of ${C O}_{2}$ in water.
(iii) Presence of impurities coating
Ans :- A,B,C,

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