Question

how does activity series helps in extraction of metals?
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Answer 1

$\bf\large\underline\blue{Answer:-}$

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:

The oxides of very reactive metals, such as aluminium, form stable oxides and other compounds. A lot of energy is needed to reduce them to extract the metal.

The oxides of less reactive metals, such as iron, form less stable oxides and other compounds. Relatively little energy is needed to reduce them to extract the metal