Science, asked by rekharamlal1987, 8 months ago

Answer the following questions 

1, What do you mean by reactivity series of metals?

2.  What are noble metals? Why are they used to make ornaments?

3. Explain Displacement reaction with an example . 

Answers

Answered by vish143690
13

Answer:

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Explanation:

What do you mean by reactivity series of metals?

reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.

What are noble metals? Why are they used to make ornaments?

Noble metals are used to make ornaments because they having high resistance to corrosion even in adverse condition.

The metals (e.g. gold, silver, or platinum) which resists chemical action, does not corrode, and is not easily attacked by acids are called noble metals.

Explain Displacement reaction with an example . 

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. 

Examples of displacement reactionswhich can occur are:

zinc displacing iron ions from iron(II) sulfate solution.

FeSO4 + Zn -----> ZnSO4 + Fe

copper displacing silver from silver(I) nitrate solution.

AgNO3 + Cu ------> CuNO3 + Ag

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