Example 1 · difficulty 1/5
The general formula of an open-chain monoalkyne is:
- A. CnH2n−2
- B. CnH2n+2
- C. CnH2n
- D. CnHn
2020 source guide · Chemistry
NEET 2020 Chemistry Hydrocarbons Questions
Connect the official 2020 paper with current Chemistry practice without labelling original previews as PYQs.
200 original questions · explicit provenance labels
ChemistryPlate 55
NeetVellum atlas · fig. chemistry
55
What to master
structure, preparation and reaction patterns of aliphatic and aromatic hydrocarbons.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 1/5
The IUPAC name of (CH₃)₃CH is:
- A. butane
- B. 2-methylbutane
- C. 2-methylpropane
- D. prop-2-ane
Example 3 · difficulty 1/5
CH₃CH=CHCH₃ is named:
- A. but-1-ene
- B. but-2-yne
- C. 2-methylpropene
- D. but-2-ene
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 Hydrocarbons 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.