Which from following elements has lowest tendency to form it's oxide?

Which from following elements has lowest tendency to form it's oxide?
  1. $\mathrm{Al}$
  2. $\mathrm{Fe}$
  3. $\mathrm{Cr}$
  4. $\mathrm{Hg}$

Solution

Mercury has the lowest tendency to form its oxide.

Asked in: MHT CET 2020 (15 Oct Shift 1)

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