Which one of the following lanthanoids does not

eSaral Updated on:
Question:

Which one of the following lanthanoids does not form $\mathrm{MO}_{2}$ ? [M is lanthanoid metal]

  1. $\operatorname{Pr}$

  2. Dy

  3. $\mathrm{Nd}$

  4. $\mathrm{Yb}$

Correct Option: 1

Solution:

$\mathrm{Yb}$ is the only element that do not form $\mathrm{MO}_{2}$ type oxide

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