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 · 2025 · Paper I, General Studies · Q24 of 120

Geo-Scientist Prelims 2025 General Studies Q24: Which one among the following constituents of cement is responsible…

QuestionApplied chemistry / cement

Which one among the following constituents of cement is responsible for initial setting?

  1. (a) Calcium sulphate
  2. (b) Dicalcium silicate
  3. (c) Tricalcium aluminate
  4. (d) Tetracalcium alumina ferrate

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