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 · 2025 · Paper II, Chemistry · Q11 of 120

Geo-Scientist Prelims 2025 Chemistry Q11: Which one of the following represents the correct order of electron…

QuestionPeriodic properties / electron gain enthalpy

Which one of the following represents the correct order of electron gain enthalpy of halogen atoms ?

  1. (a) F > Cl > Br > I
  2. (b) I > Br > Cl > F
  3. (c) I > Cl > Br > F
  4. (d) Cl > F > Br > I

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