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Iron is less reactive than _____.


Options:
A .   hydrogen
B .   copper
C .   magnesium
D .   gold
Answer: Option C
:
C
The arrangement of the metals in the increasing or decreasing order of its reactivity is called the reactivity series of the metals. The reactivity series is shown below:
Iron Is Less Reactive Than _____.
Therefore, as per the reactivity series iron is less reactive than magnesium.
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