Example 1 · difficulty 3/5
A solution contains 18 g glucose, molar mass 180 g mol⁻¹, and 180 g water, molar mass 18 g mol⁻¹. What is the mole fraction of glucose?
- A. 10/11
- B. 1/100
- C. 1/11
- D. 1/101
2025 source guide · Chemistry
NEET 2025 Chemistry Solutions Questions
Use this page to connect the official 2025 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
concentration terms, vapour pressure, colligative properties and abnormal molar mass.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 1/5
At a fixed temperature, a saturated solution is one that is in equilibrium with what?
- A. Undissolved solute
- B. Pure solvent vapour only
- C. Another immiscible liquid
- D. An evacuated space
Example 3 · difficulty 1/5
For most solids dissolving in liquids, pressure has little effect on solubility because which phases are nearly incompressible?
- A. Gases and liquids
- B. Solids and liquids
- C. Only gases
- D. Vapours and plasmas
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 2025 Chemistry Solutions 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 2025 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.