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प्रश्न
Explain why :
Iron sheets are coated with zinc during galvanization.
उत्तर
Iron sheets are coated with zinc during galvanisation to prevent them from rusting.
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संबंधित प्रश्न
Name the following: A compound added to lower the fusion temperature of electrolytic bath in the extraction of aluminum
Give the chemical names and formulae of the main ores of zinc.
In order to obtain 1 tonne of aluminium, the following inputs are required: 4 tonnes of bauxite, 150 kg of sodium hydroxide and 600 kg of graphite. The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (III) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
- Name the process used for the purification of bauxite.
- Write the equation for the action of heat on aluminium hydroxide.
In the Hall's process for extraction of aluminium, Sate the location of cathode and anode and explain what occurs at each electrode.
Name the following :
A compound added to lower the fusion temperature of electrolytic bath in the extracton of aluminium.
Describe the role played in the extraction of aluminum:
Sodium hydroxide
Name the alloy used for the following purpose.
Surgical instruments
Name a metal which is found abundantly in the Earth's crust.
Name the compound formed when: Bauxite reacts with sodium hydroxide.
The compound that is not a constituent of the electrolytic mixture used in Hall-Heroult's process is ______.
