Question

Give two examples from everyday life situations where corrosion reactions
are taking place​

Answer 1

Answer:

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Explanation:

Two common situations that we come across and involve redox reactions are: (i) Rusting of iron: When iron objects are exposed to humid air, a red brown flaky mixture of iron oxide, Fe2O3 and iron hydroxide, Fe(OH)3 is formed. It is soft and porous. Here, iron is oxidised to iron oxide and oxygen is reduced to oxide.

Answer 2

Answer:

1. Copper Corrosion

1. Copper CorrosionWhen copper metal is exposed to the environment it reacts with the oxygen in the atmosphere to form copper (I) oxide which is red in colour.

2. Silver TarnishingSilver reacts with sulphur and sulphur compounds in the air give silver sulphide (Ag2S) which is black in colour. Exposed silver forms Ag2S as it reacts with the H2S(g) in the atmosphere which is present due to certain industrial process.2Ag(s) + H2S(g) → Ag2S(s) + H+2+(g)