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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 · 2025 · Paper II, Chemistry · Q86 of 120

Geo-Scientist Prelims 2025 Chemistry Q86: Match the compound from Column-I with the possible number of…

QuestionOrganic / stereoisomerism

Match the compound from Column-I with the possible number of stereoisomers from Column-II and select the correct answer using the code given below the columns :

Column-IColumn-II
A. 2-Chloro-4,5-dimethylphenanthrene (structure)1. Four
B. 2-Bromo-6-iodobiphenyl (structure)2. Three
C. 1,4,4a,5,8,8a-Hexahydronaphthalene-2-carboxylic acid with two ring-fusion CH (structure)3. Two
D. 2,5-Dichlorocyclohexane-1,4-dione (structure)4. One
UPSC Combined Geo-Scientist Prelims 2025 Paper II (Chemistry), Q86: figure printed with the question

Code :

  1. (a) A-2, B-1, C-4, D-3
  2. (b) A-2, B-4, C-1, D-3
  3. (c) A-3, B-4, C-1, D-2
  4. (d) A-3, B-1, C-4, D-2

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