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a) what is rusting of iron? write the reaction also
b)write five uses of metals and non metals
c) write the reaction for displacement reaction and explain it
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Answers
Answer:
a) Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron objects or structures. This rust is formed from a redox reaction between oxygen and iron in an environment containing water
b) metals are used in making machinery , utensils , industrial gadgets , electrical wires, instruments , vehicles , buildings , appliances etc....... non metals like oxygen is used for breathing , chlorine for purifying water , sulphur use used as insecticide , etc
c) Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with copper sulphate solution