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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 · 2023 · Paper II, Chemistry · Q17 of 120

Geo-Scientist Prelims 2023 Chemistry Q17: Consider the following statements for Group XVI of periodic table :

Questionp-block / Group 16

Consider the following statements for Group XVI of periodic table :

  1. Oxoacids of sulphur are more numerous than other elements of Group XVI.
  2. Sulphur forms most stable dπ-pπ bonds with oxygen.
  3. Inert pair effect becomes dominant for heavier members of the group.

Which of the statements given above are correct ?

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

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