Example 1 · difficulty 2/5
A carbon-carbon double bond contains:
- A. two sigma bonds
- B. two pi bonds only
- C. one sigma bond only
- D. one sigma and one pi bond
2021 source guide · Chemistry
NEET 2021 Chemistry General Organic Chemistry Questions
Connect the official 2021 paper with current Chemistry practice without labelling original previews as PYQs.
250 original questions · explicit provenance labels
ChemistryPlate 58
NeetVellum atlas · fig. chemistry
58
What to master
electronic effects, intermediates, acidity, basicity and reaction logic.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 1/5
A carbon-carbon triple bond contains:
- A. one sigma and two pi bonds
- B. three sigma bonds
- C. two sigma and one pi bond
- D. three pi bonds
Example 3 · difficulty 1/5
Rotation is restricted around C=C mainly because rotation would disrupt the:
- A. sigma overlap only
- B. pi overlap
- C. carbon nuclei
- D. C–H bonds
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 2021 Chemistry General Organic Chemistry 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 2021 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.