Choose the correct order of decreasing reactivity of metals:--
A)Na > Mg > Al > Fe > Cu
B)Mg > Na > Fe > Al >Cu
C)Fe > Mg >Na > Cu >Al
D)Cu > Mg > Al >Fe > Na
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Answer:
A)Na > Mg > Al > Fe > Cu
Explanation:
The decreasing order of chemical reactivity is given below.
(most active) Na > Ca > Mg > Zn > Fe > Cu (least active)
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