14,988+ Questions · 21 Subjects · Free to Practice

MCQ Questions

Articles Questions Current Affairs PYQ Papers My Progress

Questions

Practice mode — a mixed feed of questions and articles for each subject. Prefer reading first? Browse the Articles index instead →

General Knowledge Ancient Indian History Medieval Indian History Modern Indian History India After Independence World History Indian Polity & Constitution Indian Governance Indian Economy International Relations Science & Technology General Science Environment & Ecology Indian Geography World Geography Indian Society Art & Culture Ethics, Integrity & Aptitude Quantitative Aptitude Reasoning English Language

Articles

Study mode — the full article library for each subject, no practice questions mixed in. Want to practice instead? Browse Questions by subject →

CDS II 2016 GK Q5

Please wait…

1. Which one of the following air pollutants combines with the haemoglobin of human blood and reduces its oxygen-carrying capacity, leading to suffocation and may cause even death?

Chlorofluorocarbon

Fly ash

Carbon monoxide

Sulphur dioxide

Loading…

Keep practicing

Beyond the answer

Leave a ReplyCancel reply

MCQquestion.com

Free MCQ practice for UPSC and State competitive exams — 30,000+ questions across 21 subjects, with the reasoning behind every answer.

CDS II 2016 GK Q5

Keep practicing

Beyond the answer

Leave a ReplyCancel reply

Discover more from MCQ Questions