Question

ere, metal A is found in free state while B is found in the form of its compounds. Which of these two will
to the top of the activity series of metals?
4. Why do metals behave as reducing agents ?
5. Name two metals which can displace hydrogen from dilute hydrochlonc acid.
6. IfA B.C.D.E.F. G, H, I, J and K represent metals in their reactivity, which one or men
state in nature ?
7. Classify the folowing elements into metals and non-metals : potassium, sulphur, diamond and argon.
8. Name the metal which can be extracted from haernatite.
9. Name one metal and one non-metal, found in liquid state at room temperature.
10. Name the most abundant metal in the earth's crust and its ore.
11. Name the metal which does not react with dilute acids.
12. Name the gas displaced by metals when they react with acids.
13. What does 20 carat gold means?
14. Silver becomes blackish (tarnishes) after sometime. Why?
15. In electrolytic refining of an impure metal, which metal is used to make the anode ?
16. Name the metal which is called strategic metal.
17. Which one of the following elements symbolized as A and B is a metal : 18A, 4B ?
18. An element X on reacting with oxygen forms an oxide X20. This oxide dissolves in water and turns blue litmus red
whether element X is a metal or a non-metal.
thu martinit series of metals?​

Answer 1

Answer:

Explanation:A metal is top in activity series.

9. Mercury is metal in liquid state and bromine is non-metal in liquid state

12.When acid react with metal it's release hydrogen gas

14. When silver react sulphur gas it's become blackish colour

15. No

Answer 2

Answer:

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