Example 1 · difficulty 2/5
For 2N₂O₅ → 4NO₂ + O₂, if O₂ forms at 0.010 mol L⁻¹ s⁻¹, N₂O₅ disappears at:
- A. 0.020 mol L⁻¹ s⁻¹
- B. 0.005 mol L⁻¹ s⁻¹
- C. 0.010 mol L⁻¹ s⁻¹
- D. 0.040 mol L⁻¹ s⁻¹
2020 source guide · Chemistry
NEET 2020 Chemistry Chemical Kinetics Questions
Use this page to connect the official 2020 paper with current Chemistry practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
What to master
rate laws, order, integrated equations, half-life and activation energy.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 2/5
For N₂ + 3H₂ → 2NH₃, nitrogen disappears at 0.02 mol L⁻¹ s⁻¹. The hydrogen disappearance rate is:
- A. 0.01 mol L⁻¹ s⁻¹
- B. 0.06 mol L⁻¹ s⁻¹
- C. 0.02 mol L⁻¹ s⁻¹
- D. 0.04 mol L⁻¹ s⁻¹
Example 3 · difficulty 2/5
For 2NO + O₂ → 2NO₂, NO₂ forms at 0.12 mol L⁻¹ s⁻¹. The normalized rate of reaction is:
- A. 0.12 mol L⁻¹ s⁻¹
- B. 0.24 mol L⁻¹ s⁻¹
- C. 0.06 mol L⁻¹ s⁻¹
- D. 0.04 mol L⁻¹ s⁻¹
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2020 Chemistry Chemical Kinetics PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2020 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.