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Question

The chemical reaction involved in the corrosion of iron metal is that of :

(a) oxidation as well as displacement (b) reduction as well as combination

(c) oxidation as well as combination (d) reduction as well as displacement

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Solution

Answer : (c) oxidation as well as combination

Explanation :
Reaction below represent corrosion. It is a oxidation of iron as well as combination reaction.
4 Fe space plus space 3 straight O subscript 2 space plus space xH subscript 2 straight O space rightwards arrow space 2 Fe subscript 2 straight O subscript 3. xH subscript 2 straight O


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