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प्रश्न
What should be the considerations during the extraction of metals by electrochemical method?
उत्तर
Generally two things are considered so that proper precautions can be taken.
(i) Reactivity of metal produced.
(ii) Suitability of electrodes.
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संबंधित प्रश्न
Explain refining of nickel by Mond process.
Write the reactions involved in extraction of silver from its ore by leaching process.
Copper can be extracted by hydrometallurgy but not zinc. Explain.
What is the role of cryolite in the metallurgy of aluminium?
What is the role of graphite rod in the electrometallurgy of aluminium?
Mention the names of various steps involved in the extraction of pure metals from their ores.
In Hall's process, the main reagent is mixed with ______.
Give reasons for the following statement:
Copper does not displace hydrogen from acids.
Match List-I with List-II:
| List-I | List-II |
| Industrial process | Application |
| (a) Haber's process | (i) HNO3 synthesis |
| (b) Ostwald's process | (ii) Aluminium extraction |
| (c) Contact process | (iii) NH3 synthesis |
| (d) Hall-Heroult process | (iv) H2SO4 synthesis |
Choose the correct answer from the options given below:
Which of the following chemical reactions represents Hall- Heroult Process?
