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प्रश्न
Given below in column A is a schematic diagram of the electrolytic reduction of alumina. Identify the parts labelled as A, B and C with the correct options from the Column B.
| column A | column B | |
 |
1. | Platinum |
| 2. | Anode | |
| 3. | Cathode | |
| 4. | Electrolyte mixture | |
| 5. | Bauxite |
उत्तर
- Cathode
- Anode
- Electrolytic mixture
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संबंधित प्रश्न
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 Bronze.
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?
Explain the following:
In construction work, why is the alloy of aluminium-duralumin used rather than pure aluminium?
Name the following:
The substance added along with aluminium in the Hall-Heroult's process.
How is ore purified (give equations also)
Describe the role played in the extraction of aluminum:
Sodium hydroxide
Write the constituents of the electrolyte for the extraction of aluminium.
The following sketch illustrates the process of conversion of Alumina to Aluminium:
- Name the constituent of the electrolyte mixture which has a divalent metal in it.
- Name the powdered substances ‘X’ sprinkled on the surface of the electrolyte mixture.
- What is the name of the process?
- Write the reactions taking place at the electrodes ‘Y’ (anode) and ‘Z’ (cathode), respectively.
The compound that is not a constituent of the electrolytic mixture used in Hall-Heroult's process is ______.
