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. 2012
  8. ›
  9. Q144

UPPSC PCS 2012 · Question 144 of 145

Which of the following substances is/are ozone depleting? 1. Chlorofluoro Carbons, 2. Halons, 3. Carbon tetrachloride. Select the correct answer from the codes given below:

Environment

  1. A1 only
  2. B1 and 2 only
  3. C2 and 3 only
  4. D1, 2 and 3Correct

Answer: D. 1, 2 and 3

Explanation

Answer (d) per Examrace/exampyq.com solved paper (2012), independently verified: CFCs, halons and carbon tetrachloride are all ozone-depleting substances.

Source: Examrace/exampyq.com UPPSC General Studies 2012 Solved Paper

← Q143View full paper (145 questions)Q145 →

Practice the full UPPSC PCS 2012 paper

Timed test with all 145 questions, just like the real exam.

Start test