Select the keyword that matches the description below.

"A reaction involving a more reactive metal removing a less reactive metal from a compound"

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"A reaction involving a metal reacting with oxygen to produce a metal oxide"

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"A reaction involving a metal oxide losing oxygen to form a pure metal"

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"A list showing the arrangement of metals in order of reactivity"

Pick the odd one out

Pick the odd one out

Pick the odd one out

Pick the odd one out

Reaction or no reaction?

Lead + copper sulphate ==>

Reaction or no reaction?

Lead + iron sulphate ==>