Which one of the following four metals would be displaced from the solution of its salts by other three metals? 

Which one of the following four metals would be displaced from the solution of its salt by other three metals?

Which of the following metals would be displaced from its solution of its salt by the other three metals?

Which one of the following will be displaced from its salt solution by copper?

Which one of the following metals can not be obtained on electrolysis of aqueous solution of its salts?

Which one of the following metals can not be obtained on electrolysis of aqueous solution of its salts?

Which one of the following metals can not be obtained on electrolysis of aqueous solution of its salts?

Which of the following metals can displace zinc from its salt solution? Give reason of your answer along with chemical equation. Copper, Lead, Magnessium, Silver.