Example 1 · difficulty 1/5
Which of the following carbonyl compounds reacts fastest with HCN (a typical nucleophilic addition reagent)?
- A. Propanone
- B. Benzaldehyde
- C. Methanal
- D. Ethanal
2023 source guide · Chemistry
NEET 2023 Chemistry Questions
Use this page to connect the official 2023 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.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 2/5
Which of the following gives a positive result with BOTH Tollens' reagent and the iodoform test?
- A. Propan-2-ol
- B. Ethanal
- C. Methanal
- D. Butan-2-one
Example 3 · difficulty 3/5
On heating with concentrated aqueous KOH, which of the following undergoes disproportionation to give an alcohol together with the potassium salt of a carboxylic acid?
- A. Ethanal
- B. Propanal
- C. Pentan-3-one
- D. Benzaldehyde
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
Some Basic Concepts of Chemistry →Structure of Atom →Classification of Elements and Periodicity in Properties →Chemical Bonding and Molecular Structure →Thermodynamics →Equilibrium →Redox Reactions →Organic Chemistry: Some Basic Principles and Techniques →Hydrocarbons →Solutions →Electrochemistry →Chemical Kinetics →The d- and f-Block Elements →Coordination Compounds →Haloalkanes and Haloarenes →Alcohols, Phenols and Ethers →Aldehydes, Ketones and Carboxylic Acids →Amines →Biomolecules →
Frequently asked questions
Are these official NEET 2023 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 2023 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.