Which of the following shows an incorrect method of refining?
- Zinc : Liquation
- Copper : Electrolysis
- Titanium : Van Arkel Method
- Nickel : Mond’s Process
The Correct Option is A
Solution and Explanation
Nowadays, hard water is softened by using synthetic ion exchangers. This method is more efficient than the zeolite process, also known as the Permutit process. Additionally, the synthetic resin method does not result in the formation of soluble sodium salts, making Statement II incorrect. Therefore, both statements I and II are incorrect.
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Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal