Question

how does activity series helps in extraction of metals​

Answer 1

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Activity series is the arrangement of metals that react the highest to the least ones. It helps in the extraction of metals as it helps us know which metals are best reactive and least one in the reaction. It helps to choose the best metal for the reaction.

Answer 2

Answer:

High reactivity Moderate Reactivity Low reactivityK, Na, Ca, Mg and Al simple chemical reduction methods like heating with C, CO to reduce the ores of these metals are not feasible. Zn, Fe, Pb, Cu the ores of these metals are generally present as sulphides or carbonates in nature. Sulphide ores are converted into oxides by heating them strongly in excess of air. The metal oxides are then reduced. Ag, Hg, Au are at the bottom of the activity series are often found in free state. Their reactivity with other atoms is very low. The oxides of these metals can be reduced to metals by heat alone and sometimes by dis-placement from their aqueous solutions.