Give reasons: Aluminium is a highly reactive metal,yet it is used to make utensils for cooking.
(N/A) Although aluminium is a highly reactive metal,it is resistant to corrosion.
This is because aluminium reacts with oxygen present in the air to form a thin,protective layer of aluminium oxide $(Al_2O_3)$.
This oxide layer is very stable and non-porous,which prevents further oxidation and corrosion of the underlying metal.
Additionally,aluminium is lightweight,durable,and an excellent conductor of heat,making it an ideal material for manufacturing cooking utensils.
This is because aluminium reacts with oxygen present in the air to form a thin,protective layer of aluminium oxide $(Al_2O_3)$.
This oxide layer is very stable and non-porous,which prevents further oxidation and corrosion of the underlying metal.
Additionally,aluminium is lightweight,durable,and an excellent conductor of heat,making it an ideal material for manufacturing cooking utensils.
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Similar Questions
Samples of four metals $A$,$B$,$C$ and $D$ were taken and added to the following solutions one by one. The results obtained have been tabulated as follows.
Metal Iron $(II)$ sulphate Copper $(II)$ sulphate Zinc sulphate Silver nitrate $A$ No reaction Displacement No reaction Displacement $B$ Displacement Displacement No reaction Displacement $C$ No reaction No reaction No reaction Displacement $D$ No reaction No reaction No reaction No reaction
Use the table above to answer the following questions about metals $A$,$B$,$C$ and $D$:
$(i)$ Which is the most reactive metal?
$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate?
$(iii)$ Arrange the metals $A$,$B$,$C$ and $D$ in the order of decreasing reactivity.
| Metal | Iron $(II)$ sulphate | Copper $(II)$ sulphate | Zinc sulphate | Silver nitrate |
| $A$ | No reaction | Displacement | No reaction | Displacement |
| $B$ | Displacement | Displacement | No reaction | Displacement |
| $C$ | No reaction | No reaction | No reaction | Displacement |
| $D$ | No reaction | No reaction | No reaction | No reaction |
Use the table above to answer the following questions about metals $A$,$B$,$C$ and $D$:
$(i)$ Which is the most reactive metal?
$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate?
$(iii)$ Arrange the metals $A$,$B$,$C$ and $D$ in the order of decreasing reactivity.
Difficult
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View SolutionGive reasons: Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Easy
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