Question

Q1. Write the reactivity series.
Q2. How is Mercury extracted from its ore "Cinnabar"?

Answer 1

Explanation:

1. The reactivity series is a series of metals in order of their reactivity from the highest to the lowest .
2. K
3. Na
4. Ca
5. Mg
6. Al
7. Zn
8. Fe
9. Pb
10. H
11. Cu
12. Hg
13. Ag
14. Au
15. Pt.

2. Mercury is a less reactive metal and it can be extracted from its sulphide ore cinnabar by heating it in air alone. 1. It is first heated in the presence of surplus air (roasting process). ... Mercury (II) oxide, so formed, is heated to around 300°C and it gets reduced to mercury metal.

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Answer 2

A chart of reactivity series is given below :

|| Metals ||

— Potassium

— Sodium

— Lithium

— Barium

— Strontium

— Calcium

— Magnesium

— Aluminium

— Maganese

— Zinc

— Chromium

— Iron

— Cadmium

— Cobalt

— Nickel

— Tin

— Lead

— Hydrogen

— Antimony

— Bismuth

— Copper

— Mercury

— Silver

— Gold

— Platinum