Question:
Which of the following processes is not related to the purification or refining of metals?
Which of the following processes is not related to the purification or refining of metals?
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Froth flotation is an ore concentration method, whereas Mond's process and Van Arkel process are metal refining methods.
Updated On: Jun 17, 2026
- Liquation
- Mond's process
- Froth floatation
- Van Arkel method
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The Correct Option is C
Solution and Explanation
Concept:
Metallurgy involves concentration of ores, extraction of metals, and purification/refining of metals. Different processes are used at different stages.
Step 1: Examine Liquation. Liquation is a refining process used for metals having low melting points. Hence it is related to purification.
Step 2: Examine Mond's process. Mond's process is used for purification of nickel through formation and decomposition of nickel carbonyl. Therefore it is a refining method.
Step 3: Examine Van Arkel method. Van Arkel process is used for purification of titanium and zirconium. Hence it is also a refining method.
Step 4: Examine Froth Floatation. Froth flotation is not a refining process. It is used for the concentration of sulphide ores before extraction of the metal. Therefore it is not related to purification or refining. Hence, \[ \boxed{\text{Froth floatation}} \]
Step 1: Examine Liquation. Liquation is a refining process used for metals having low melting points. Hence it is related to purification.
Step 2: Examine Mond's process. Mond's process is used for purification of nickel through formation and decomposition of nickel carbonyl. Therefore it is a refining method.
Step 3: Examine Van Arkel method. Van Arkel process is used for purification of titanium and zirconium. Hence it is also a refining method.
Step 4: Examine Froth Floatation. Froth flotation is not a refining process. It is used for the concentration of sulphide ores before extraction of the metal. Therefore it is not related to purification or refining. Hence, \[ \boxed{\text{Froth floatation}} \]
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