Question

In which method a less reactive metal is coated on a more reactive metal by electrolysis ?

Answer 1

Answer -

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• Metals more reactive than carbon, such as aluminium, are extracted by electrolysis, while metals less reactive than carbon, such as iron, may be extracted by reduction with carbon. As gold is so unreactive, it is found as the native metal and not as a compound. It does not need to be chemically separated

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Answer 2

Electrolysis

Explanation:

Electrolysis:

The process by which ionic substances are splits  into simpler substances by  passing an  electric current through them.

• High reactive metals :( aluminium, calcium and sodium) are extracted from their ores by the electrolytic reduction.
• Less reactive metals  than carbon( iron) extracted by reduction with carbon.
• Reactivity and extraction method.

                         Metal          Method

                      Sodium         Electrolysis

                      Calcium         Electrolysis

                    Magnesium  Electrolysis

                     Aluminium Electrolysis