Question

1. Corrosion of metal in volves -
a) Physical reaction
.) Both (a) and (b)
b) Chemical reaction
d) None of these

Answer 1

Answer:

b)chemical reaction

Explanation:

corrosion ....the conversion of metals into undesirable form with contact of air and o2

Answer 2

Corrosion of metal involves (b) Chemical reaction.

Explanation:

• The process through which a pure metal is converted into its oxides or sulfides, or hydroxides it is called corrosion.
• When metal gets exposed to air and water for a long period, it gets corroded.
• When metal gets corroded, it looses its original property and due to the formation of corrosion, it gains new properties.
• As the reaction has produced a compound or product with new properties, it is considered a chemical reaction.
• Hence it is inferred that corrosion of metals involves a chemical reaction.

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