In the electrolytic refining of a metal $M$, what would you take as the anode, the cathode and the electrolyte ?
In the electrolytic refining of a metal $M$, what would you take as the anode, the cathode and the electrolyte ?
In the electrolytic refining of a metal $M$ :
Anode $\rightarrow$ Impure metal $M$
Cathode $\rightarrow$ Thin strip of pure metal $M$
Electrolyte $\rightarrow$ Solution of salt of the metal $M$
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Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
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Metallic oxides of zinc, magnesium and copper were heated with the following metals.
Metal
Zinc
Magnesium
Copper
Zinc oxide
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-
-
Magnesium oxide
-
-
-
Copper oxide
-
-
-
In which cases will you find displacement reactions taking place ?
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
| Metal | Zinc | Magnesium | Copper |
| Zinc oxide | - | - | - |
| Magnesium oxide | - | - | - |
| Copper oxide | - | - | - |
In which cases will you find displacement reactions taking place ?
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What are amphoteric oxides? Give two examples of amphoteric oxides.