Question

From the given table, identify the set of metals that cannot be extracted from their ores using carbon reduction method.

• A. Set - A
• B. Set - B
• C. Set - C
• D. Both Sets - B & C

Answer 1

The correct option is A Set - A

Metals like K, Na, Mg, Ca, Al are highly reactive in nature and hence cannot be obtained by using carbon reduction process. These metals are thus obtained by electrolytic reduction.

Metals like Zn, Fe, Pb lie in the middle of the reactivity series are moderately reactive.

Metals like Cu, Au, Ag, Pt lie at the bottom of the reactivity series are least reactive and are found in their free states.