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 I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2026 · Paper I, General Studies · Q66 of 120

Geo-Scientist Prelims 2026 General Studies Q66: The conversion of naphthalene into naphthalene vapours is called

QuestionChemistry / Purification methods

The conversion of naphthalene into naphthalene vapours is called

  1. (a) distillation
  2. (b) sublimation
  3. (c) crystallization
  4. (d) decomposition

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