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 →

Which of the following are oxidation reactions? I. Rusting of iron II. Burning of fuel III. Rancidity of oils and fats IV. Browning of fruits [NDA & NA (I) 2026]

Please wait…

1. Which of the following are oxidation reactions? I. Rusting of iron II. Burning of fuel III. Rancidity of oils and fats IV. Browning of fruits [NDA & NA (I) 2026]

I, II and III only

I, II and IV only

III and IV only

I, II, III and IV

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.

Which of the following are oxidation reactions? I. Rusting of iron II. Burning of fuel III. Rancidity of oils and fats IV. Browning of fruits [NDA & NA (I) 2026]

Keep practicing

Beyond the answer

Leave a ReplyCancel reply

Discover more from MCQ Questions