In electrolytic refining, the impure metal is used as which of the following?
Anode
Correct Answer: Anode
In electrolytic refining:
- Anode (+): Impure metal (dissolves during the process)
- Cathode (−): Pure metal (pure metal gets deposited here)
- Electrolyte: Salt solution of the metal being refined
Example (Copper refining): Impure Cu (anode) dissolves into Cu²⁺ ions; pure Cu deposits on cathode. Impurities (like Ag, Au, Pt) fall to the bottom as anode mud and are recovered separately.
Similar Questions
The molecular mass of carbon dioxide is:
What happens when acid is dissolved in water?
A sample of brass is melted and poured into a mold to make a musical instrument. Which of the following correctly explains why brass is classified as a homogeneous mixture?
Which of the following statements are correct in relation to the extraction of metals? The metals which lie high in the reactivity series are extracted by the electrolysis of molten ore.
The metals of medium reactivity series exist as sulphides and carbonates in nature. It is easier to extract a metal from its sulphide in comparison to oxides.
Which of the following statements best explains why dry HCl gas does NOT change the colour of dry litmus paper, but aqueous HCl does?
Which of the following is NOT a property associated with compounds?
What is the purpose of enrichment of ore before extraction?
Which statement best describes an olfactory indicator?
Which of the following 'indicators' is used to test the nature of solutions besides litmus paper?
Important Questions from Basic Concepts of Chemistry
Which of the following given below is an alloy of mercury?
The chemical symbol of potassium is _______.
In a molecule of water, the ratio of the mass of hydrogen to that of oxygen is:
Which is the element having the highest atomic mass among the following?
Each water molecule, contains _______ hydrogen atoms and one Oxygen atom.
