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प्रश्न
State the property of the metal being utilized in the following :
| Use of metal | Property |
| Zinc in Galvanization | |
| Aluminium in Thermite welding |
उत्तर
| Use of metal | Property |
| Zinc in Galvanization | Zinc oxidises more readily than iron, thus preventing the rusting of iron. |
| Aluminium in Thermite welding | Aluminium is a good reducing agent. |
संबंधित प्रश्न
Name one ore of aluminium. Name the aluminium compound present in this ore and write its chemical formula.
Name the electrode at which aluminium metal is produced.
Name one ore of mercury. Which mercury compound is present in this ore? Write its chemical formula.
Zinc blende ore can be converted into zinc oxide by the process of:
(a) roasting
(b) hydrogenation
(c) chlorination
(d) calcination
State one observation for each of the following :
Copper sulphate solution is electrolysed using copper electrodes.
Name the methods by which concentrated ore is converted to metallic oxide.
Name the following :
The Process of heating an ore to a high temperature in the presence of air.
Aluminium oxide is _______ oxide.
Explain concept with example/explain with the help of a balanced equation.
Roasting
Iqbal treated a lustrous, divalent element M with sodium hydroxide. He observed the formation of bubbles in reaction mixture. He made the same observations when this element was treated with hydrochloric acid. Suggest how can he identify the produced gas. Write chemical equations for both the reactions.
