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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper II covers chemistry.

UPSC Combined Geo-Scientist, Prelims · 2022 · Paper II, Chemistry · Q14 of 120

Geo-Scientist Prelims 2022 Chemistry Q14: Consider the following statements regarding lanthanide series metals :

Questionf-block / lanthanides

Consider the following statements regarding lanthanide series metals :

  1. They are silvery white.
  2. They are electropositive.
  3. They are non-reactive.

Which of the statements given above is/are correct?

  1. (a) 1 only
  2. (b) 2 only
  3. (c) 1 and 2 only
  4. (d) 1, 2 and 3

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