Sodium is more reactive than iron. How can you prove it? - Vidyadip

Question

Sodium is more reactive than iron. How can you prove it?

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Answer

$i.$ Sodium reacts vigorously with cold water and a large amount of heat releases but iron reacts with steam very slowly.
$ii.$ Sodium metal reacts with ferric oxide $(\ce{Fe_2O_3})$ and forms sodium oxide by displacing iron.
$\ce{6Na + Fe_2O_3 → 3Na_2O + 2Fe}$
$iii.$ Sodium reacts with acids very quickly but iron takes some time to react with acids.

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