Identify the correct decreasing order of densities of d -block elements.

Identify the correct decreasing order of densities of d -block elements.
  1. $\mathrm{Fe}>\mathrm{Ni}>\mathrm{V}>\mathrm{Cr}$
  2. $\mathrm{Cr}>\mathrm{Fe}>\mathrm{V}>\mathrm{Ni}$
  3. $\mathrm{Ni}>\mathrm{Fe}>\mathrm{Cr}>\mathrm{V}$
  4. $\mathrm{V}>\mathrm{Cr}>\mathrm{Fe}>\mathrm{Ni}$

Solution

Across the $3 \mathrm{~d}-$ series, density of the elements increases. $\therefore \mathrm{Ni}>\mathrm{Fe}>\mathrm{Cr}>\mathrm{V}$

Asked in: MHT CET 2020 (19 Oct Shift 2)

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