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UPSC Geo-Scientist Prelims 2026 - Chemistry (Paper II) Mock Test

Full-length UPSC Geo-Scientist Prelims Chemistry Paper II mock: 50 medium-to-hard MCQs across Physical, Inorganic, Organic and Analytical chemistry, with worked solutions.

Exam: UPSC Geoscientist 2026
50 Questions
50 Minutes
Created by
Last updated September 2026
English
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Access this test package with 1 full-length mock tests

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1 tests•50 total questions

UPSC Geo-Scientist Prelims Chemistry Paper II - Mock Test 01

50 Questions
50 mins
Available Now

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What you'll master

Solve Physical Chemistry numericals on thermodynamics, electrochemistry and kinetics quickly and accurately
Apply periodicity, VSEPR, MO theory and coordination chemistry concepts to statement-based questions
Tackle stereochemistry, reaction mechanisms and named rearrangements in Organic Chemistry
Handle analytical chemistry questions on errors, statistics, titrations and spectrophotometry
Practise elimination under one-third negative marking with high-value 6-mark questions
Review every answer through worked, verified explanations

Requirements

  • Complete the Paper II (Chemistry) Prelims syllabus at graduation level before attempting
  • Keep a rough sheet ready for numerical problems; no calculator is provided
  • Use a laptop, desktop or tablet with a stable internet connection
  • Attempt only when confident, since one-third marks are deducted for each wrong answer

Description

UPSC Combined Geo-Scientist (Preliminary) Examination - Paper II: Chemistry Mock Test

A full-length, medium-to-hard mock test for Paper II (Chemistry) of the UPSC Combined Geo-Scientist Preliminary Examination. It is built for Chemist-stream candidates applying for Chemist (GSI), Scientist B (Chemical) and Assistant Chemist (CGWB) posts.

Test structure

  • 50 multiple-choice questions, four options each, single correct answer

  • Duration: 50 minutes

  • Maximum marks: 300

  • Marking: +6 for each correct answer, -2 (one-third) for each wrong answer, no penalty for unattempted questions

The test is a 5:12 scaled version of the actual paper (120 items, 300 marks, 2 hours). It keeps the official one-third negative marking and the 100:300 weighting of Paper I to Paper II, so Chemistry carries three times the weight of General Studies.

Branch-wise distribution

  • Physical Chemistry - 18 questions (kinetic theory and gaseous state, solids, thermodynamics, chemical equilibria, electrochemistry, chemical kinetics, atomic structure, solutions)

  • Inorganic Chemistry - 16 questions (chemical periodicity, chemical bonding and molecular structure, acids and bases, coordination compounds, theoretical basis of quantitative inorganic analysis)

  • Organic Chemistry - 11 questions (reaction intermediates, stereochemistry, types of organic reactions, molecular rearrangements)

  • Analytical Chemistry - 5 questions (errors and statistics, titrimetry, spectrophotometry, complexometry, gravimetry, chromatography)

What makes it exam-like

  • 19 numerical problems, including the Nernst equation, Arrhenius activation energy, unit-cell density, Kp from degree of dissociation, pH of very dilute acids, Ksp, spin-only magnetic moment, the Beer-Lambert law and redox titration

  • UPSC-style statement, pair-matching and ordering questions

  • Difficulty: 31 medium and 19 hard questions

Every question comes with a detailed explanation, and all numerical answers have been verified with full working.

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UPSC Geo-Scientist Prelims 2026 - Chemistry (Paper II) Mock Test
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