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JEE Main 202126 FebruaryMorning Shift
Exam
JEE Main
Year
2021
Date
26 February
Shift
Morning Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2021 · 26 February · Morning Shift · Chemistry · d and f Block Elements

Which one of the following lanthanoids does not form MO _ 2 ? [ M...

Which one of the following lanthanoids does not form MO2{MO}_{2}? [MM is lanthanoid metal]

Options

  1. AYbYb
  2. BDyDy
  3. CNdNd
  4. DPrPr

Correct answer

A. YbYb

Step-by-step solution

YbYb is the only element that does not form MO2{MO}_{2} type oxide.

Ytterbium is a soft, malleable and rather ductile element that exhibits a bright silvery luster. A rare earth, the element is easily attacked and dissolved by mineral acids, slowly reacts with water, and oxidizes in air. The oxide forms a protective layer on the surface. Compounds of ytterbium are rare.

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