PYQPulse
HomeMocksPracticePYQsUpdatesDashboard
PYQPulse

Timing-accurate mock tests and PYQs for SSC, Banking and Railway exams — so the real paper feels like a revision.

Exams

  • SSC exams
  • Banking exams
  • Railway exams
  • All exams

Practice

  • Practice questions
  • Mock test series
  • Sectional tests
  • Year-wise PYQs
  • Performance analytics

Company

  • About us
  • Help Centre
  • Pricing
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service

Contact

  • hello@testwala.co.in
  • Telegram
  • +91 62816 87760

Practice interface modeled on the official exam pattern — not the official examination. PYQPulse is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 PYQPulse. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. UPPSC PCS
  6. ›
  7. 2020
  8. ›
  9. Q109

UPPSC PCS 2020 · Question 109 of 148

Match (Substance-Use): A. Blue Vitriol, B. Eosin, C. Silver iodide, D. Zinc phosphide with 1. Artificial rain, 2. Fungicide, 3. Red ink, 4. Rodenticide.

Science & Tech

  1. AA-2, B-3, C-4, D-1
  2. BA-2, B-1, C-3, D-4
  3. CA-2, B-3, C-1, D-4Correct
  4. DA-2, B-4, C-1, D-3

Answer: C. A-2, B-3, C-1, D-4

Explanation

Blue vitriol (CuSO4)-fungicide, Eosin-red ink, Silver iodide-artificial rain (cloud seeding), Zinc phosphide-rodenticide.

Source: https://www.drishtiias.com/images/pdf/UPPSC 2020 Prelims GS Paper - 1.pdf

← Q108View full paper (148 questions)Q110 →

Practice the full UPPSC PCS 2020 paper

Timed test with all 148 questions, just like the real exam.

Start test