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प्रश्न
Give the chemical names and formulae of the main ores of zinc.
उत्तर
| Name | Chemical name | Formula |
| Calamine | Zinc carbonate | \[\ce{ZnCO3}\] |
| Zinc blende | Zinc sulphide | \[\ce{ZnS}\] |
| Zincite | Zinc oxide | \[\ce{ZnO}\] |
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संबंधित प्रश्न
Answer the following questions with respect to the electrolytic process in the extraction of aluminum:
Explain why powdered coke is sprinkled over the electrolytic mixture.
Name the solution used to react with Bauxite as a first step in obtaining pure aluminum oxide, in the Baeyer’s process
Name the constituents of Solder.
For cryolite, explain its significance in the extraction of aluminium.
For graphite, explain its significance in the extraction of aluminium.
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.
- Write the formula of cryolite.
- Write down the word which correctly completes the following sentence.
By dissolving aluminium oxide in cryolite, a ______ (conducting/non-conducting) solution is produced. - Why is so much graphite required for the electrolytic process?
- Write the equation for the reaction which takes place at the cathode.
- What is cathode made up of?
For the substance listed below, explain its role in the extraction of aluminium: Sodium hydroxide
Describe the role played in the extraction of aluminum:
Sodium hydroxide
Name the solution used to react with bauxite as a first step in obtaining pure aluminium oxide, in the Baeyer's process.
Name the alloy used for the following purpose.
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