Question: What is the correct order of the following elements with respect to their density ?
$\mathrm{Cr}<\mathrm{Zn}<\mathrm{Co}<\mathrm{Cu}<\mathrm{Fe}$
$\mathrm{Zn}<\mathrm{Cu}<\mathrm{Co}<\mathrm{Fe}<\mathrm{Cr}$
$\mathrm{Zn}<\mathrm{Cr}<\mathrm{Fe}<\mathrm{Co}<\mathrm{Cu}$
$\mathrm{Cr}<\mathrm{Fe}<\mathrm{Co}<\mathrm{Cu}<\mathrm{Zn}$
Correct Option: 3,
Solution:
