A list of metals arranged in the order of their decreasing reactivity is known as:
A
Electrolytic refining
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B
Roasting
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C
Metallurgy
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D
Activity series
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Solution
The correct option is D Activity series Activity series is a series of metals arranged according to their reactivity in a decreasing order. The metals at the top are the most reactive in nature whereas the metals at the bottom of this series are the ones which are the least reactive.