How much is Hydrogen worth in JEE Main?

0.0 marks out of 100 in the Chemistry section, measured from this chapter's real share of tagged previous-year JEE Main questions — not an editor's opinion.

How many practice questions does ViJEEta have for Hydrogen?

441 exam-grade questions (11 from the curated premium pool: human-written test-series anchors and their calibrated variants), plus 0 real PYQs kept separate.

How does ViJEEta decide I've mastered Hydrogen?

At least 3 answered questions in the chapter, a guessing-corrected IRT true score at a conservative ability estimate, and 'mastered' (≥0.80) is reachable only through tests — book work caps at 0.60 and unproctored practice at 0.75.

JEE › Chemistry › Hydrogen

Hydrogen · JEE ChemistryClass 11

Real weightage, real PYQs, and an honest measure of how ready you are in this chapter.

0.0/100marks weight in Chemistry

★☆☆☆☆exam importance

0real PYQs · —

441practice questions

How much is Hydrogen actually worth?

Every chapter's weight on ViJEEta is derived, not asserted: we tag every previous-year JEE Main question to its chapter, and a chapter's weight is its real share of those papers. Hydrogen carries 0.0 of 100 Chemistry marks. Your readiness /300 uses exactly this weight — so an hour spent here moves your score by what the exam actually pays for it.

chapter_weight = tagged_PYQs(chapter) ÷ Σ tagged_PYQs(subject) readiness_contribution = 100 × chapter_weight × your_mastery

What does "mastered" mean here — honestly?

ViJEEta refuses to print a number it hasn't measured. Hydrogen shows "—" until you've answered at least 3 questions in it. After that, mastery is a guessing-corrected IRT true score at a conservative ability estimate over the chapter's real item difficulties — a blind 25% MCQ guess earns zero. Reading theory caps evidence at 0.60, unproctored practice at 0.75; "mastered" (≥0.80) is reachable only through tests. That's why the number is worth trusting.

Topics inside this chapter

Introduction to HydrogenPreparation of DihydrogenProperties of DihydrogenHydridesProperties of WaterHardness of WaterIntroduction to Heavy WaterIntroduction to Hydrogen PeroxidePreparation of Hydrogen PeroxideProperties of Hydrogen Peroxide

Previous-year questions

PYQs for this chapter appear inside full-year papers on the PYQ tab.

Study Hydrogen on ViJEEta

Adaptive chapter test (25 questions that follow your level, ~80% MCQ like the real paper), practice sized to your goal, and the Tatva book pages for theory — every answer becomes evidence in your /300. Works in the browser and as the Android app, one account across both.

Start free — web or app See how the score works

Chapters either side of this one by weight

Ordered by measured share of real JEE papers, so the chapters listed here are the ones carrying the nearest exam value to Hydrogen — not the ones next to it in the alphabet.

← General Organic Chemistry (Revision) & IsomerismPolymers →

Environmental Chemistry Gaseous State General Inorganic Chemistry General Organic Chemistry (Revision) & Isomerism Polymers Surface Chemistry The s-block elements General Organic Chemistry

All Chemistry chapters ranked by weightage →

Where to go next

Chemistry chapters by weightage The full JEE syllabus Real previous-year papers How the /300 is computed Use ViJEEta free