Which metal is more reactive : iron or zinc ?

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Solution

Zinc more reactive than iron.
The reason are:

Zinc is a more electropositive element than iron

Zinc has a bigger atomic size than that of iron and thus has more number of electrons.

The fact of having more elecetrons and a ‘d’ sub shell, gives zinc a lot of hybridisation possibilities than that of iron.

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Which metal is less reactive : copper or iron ?

CuSO4+Fe →FeSO4+ Cu

FeSO4+Zn →ZnSO4+ Fe

Which of the following statement is true on the basis of above reactions?

Though zinc is more reactive than iron, yet it prevents rusting. Justify.

The figure represents the reactivity of metals then which of the following are correct?

(i) Sodium is more reactive than magnesium.

(ii) Magnesium ad aluminium metals displace lead.

(iii) Magnesium and aluminium metals displace calcium.

(iv) Iron and tin metals can displace magnesium.

(v) Most reactive metal is sodium.

(vi) Gold is least reactive.

(vii) Calcium and zinc metals displace iron.

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