Extraction of highly electropositve metal is done by

Options

A. electrolysis of aqueous solution of metal chloride
B. electrolysis of molten metal chloride
C. carbon reduction of the oxide of the metal
D. strongly heating the oxide of the metal

Explanation

**Step-by-Step Solution:**

1. **Identify the Metal Ore**: The first step in the extraction of highly electropositive metals is to obtain their metal ores. These ores contain the metal in a combined form with other elements.

2. **Convert Metal Ore to Chlorides or Oxides**: The next step involves converting the metal ore into a more suitable form for extraction, typically into chlorides or oxides of the metal. This can be done through various chemical processes such as roasting or calcination.

3. **Melt the Chlorides or Oxides**: Once you have the metal in the form of chlorides or oxides, the next step is to heat them to obtain a molten state. This is crucial because electrolysis requires the substance to be in liquid form for efficient ion movement.

4. **Perform Electrolysis**: The molten chlorides or oxides are then subjected to electrolysis. This process involves passing an electric current through the molten substance, which causes it to dissociate into its constituent ions.

5. **Obtain Pure Metal**: During electrolysis, the electropositive metal ions migrate to the cathode (negative electrode) where they gain electrons and are reduced to form pure metal. This pure metal can then be collected.

**Final Answer**: The extraction of highly electropositive metals is done by converting their ores into chlorides or oxides, melting them, and then performing electrolysis.

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