VKC ScienceChemistry for written exams Telegram

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 · 2026 · Paper II, Chemistry · Q89 of 120

Geo-Scientist Prelims 2026 Chemistry Q89: Which one of the following compounds has the highest preference to…

QuestionOrganic / conformational analysis

Which one of the following compounds has the highest preference to exist as gauche conformer ? 1,2-Dichloroethane (I), 1,2-Dibromoethane (II), 1,2-Difluoroethane (III), n-Butane (IV)

  1. (a) I
  2. (b) II
  3. (c) III
  4. (d) IV

Part of VKC Basic

Read the answer and its explanation with VKC Basic

VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.

See what is included Already a member? Sign in

Take this paper offlineAll 120 questions with answers and explanations in one PDF.
Download PDFJoin Telegram