Question

1) Fill in the blanks
(1mark)
1. On electro refining of metals, the impure metal is taken as
2. The electrode is called as anode.
3. Positively charged particles present in an atom.....
4. Centre of an atom......
5. Electron flows from
.... terminal to......
6. Electric current flows from......... .... Terminal to
7. Neutral particles present in an atom..
8. The ability of a material to conduct electricity or to allow the flow of electric charges is called ---
9. The electrical conductivity of a material measures how ------------- are bound within the atoms
10. Iron,copper ,silver and aluminium have ------------ of electric current.
11. -------- is a complete path for the electric current to flow.
12. -------- are materials that allow electric current to pass through it.
13. Positively charged ions
14. A liquid that is a good conductor of electric current is called an
15. Pure water is a ----------- of electricity.
16. The impurities ------- the number of freely charged ions in the water.
17. when electricity passed through the tap water, it breaks down to give -- and
gas​

Answer 1

ANSWER:

1.anode

2.impure

3.proton

4.nucleus

5.negative terminal to positive terminal

6 current flow from positive terminal to negative terminal

7.neutrons

8.conductivity

Answer 2

1.anode

2.impure

3.proton

4.nucleus

5.negative terminal to positive terminal

6 current flow from positive terminal to negative terminal

7.neutrons

8.conductivity