Improving processes and products

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Question 25
Easy

To improve industrial metallurgical processes and transition towards low-carbon manufacturing, chemical engineers select extraction methods based on the thermodynamic stability of metal oxides. This stability correlates with the metal's position in the reactivity series relative to carbon and hydrogen.

The partial reactivity series of some metals, including the non-metals carbon and hydrogen, is shown below:

most reactive↑sodiummagnesiumaluminiumcarbonzincironhydrogencopperleast reactive↓ \begin{array}{rcc} \textbf{most reactive} & \uparrow \\ & \text{sodium} \\ & \text{magnesium} \\ & \text{aluminium} \\ & \textbf{carbon} \\ & \text{zinc} \\ & \text{iron} \\ & \textbf{hydrogen} \\ & \text{copper} \\ \textbf{least reactive} & \downarrow \end{array} most reactiveleast reactive​↑sodiummagnesiumaluminiumcarbonzincironhydrogencopper↓​

Which option correctly matches each metal to the most energy-efficient, thermodynamically viable extraction method that reflects its reactivity?

Requires ElectrolysisReduction with CarbonHydrogen / Nativecoppermagnesiumzinc \begin{array}{|c|c|c|} \hline \textbf{Requires Electrolysis} & \textbf{Reduction with Carbon} & \textbf{Hydrogen / Native} \\ \hline \text{copper} & \text{magnesium} & \text{zinc} \\ \hline \end{array} Requires Electrolysiscopper​Reduction with Carbonmagnesium​Hydrogen / Nativezinc​​
Requires ElectrolysisReduction with CarbonHydrogen / Nativealuminiumzinccopper \begin{array}{|c|c|c|} \hline \textbf{Requires Electrolysis} & \textbf{Reduction with Carbon} & \textbf{Hydrogen / Native} \\ \hline \text{aluminium} & \text{zinc} & \text{copper} \\ \hline \end{array} Requires Electrolysisaluminium​Reduction with Carbonzinc​Hydrogen / Nativecopper​​
Requires ElectrolysisReduction with CarbonHydrogen / Nativesodiumaluminiumiron \begin{array}{|c|c|c|} \hline \textbf{Requires Electrolysis} & \textbf{Reduction with Carbon} & \textbf{Hydrogen / Native} \\ \hline \text{sodium} & \text{aluminium} & \text{iron} \\ \hline \end{array} Requires Electrolysissodium​Reduction with Carbonaluminium​Hydrogen / Nativeiron​​
Requires ElectrolysisReduction with CarbonHydrogen / Nativeironcoppersodium \begin{array}{|c|c|c|} \hline \textbf{Requires Electrolysis} & \textbf{Reduction with Carbon} & \textbf{Hydrogen / Native} \\ \hline \text{iron} & \text{copper} & \text{sodium} \\ \hline \end{array} Requires Electrolysisiron​Reduction with Carboncopper​Hydrogen / Nativesodium​​

Improving processes and products Questions

  1. GCSE
  2. /Chemistry
  3. /Improving processes and products