Improving processes and products

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Question 10
Easy

The list shows the reactivity series of some metals. One non-metal element, carbon, is also included.

most reactive↑potassiumcalciummagnesiumaluminiumcarbonzincironcopper↓least reactive \begin{array}{c} \textbf{most reactive} \\ \uparrow \\ \text{potassium} \\ \text{calcium} \\ \text{magnesium} \\ \text{aluminium} \\ \text{carbon} \\ \text{zinc} \\ \text{iron} \\ \text{copper} \\ \downarrow \\ \textbf{least reactive} \end{array} most reactive↑potassiumcalciummagnesiumaluminiumcarbonzincironcopper↓least reactive​

Which row correctly identifies a metal extracted by electrolysis and a metal extracted by heating with carbon?

Extracted by electrolysis: calcium; Extracted by heating with carbon: iron

Extracted by electrolysis: copper; Extracted by heating with carbon: magnesium

Extracted by electrolysis: potassium; Extracted by heating with carbon: aluminium

Extracted by electrolysis: iron; Extracted by heating with carbon: calcium

Improving processes and products Questions

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