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NTA Abhyas JEE Main2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

How many of the following metals can be extracted by auto-reduction? Fe , Zn , Pb , Al , Hg , Cu , K , Ca

Correct answer

3

Step-by-step solution

Pb , Cu and Hg can be extracted by self or autoreduction.

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