Example 1 · difficulty 2/5
A binary solution contains 2 mol of A and 3 mol of B. What is the mole fraction of B?
- A. 0.40
- B. 0.60
- C. 1.50
- D. 0.67
2023 source guide · Chemistry
NEET 2023 Chemistry Solutions Questions
Connect the official 2023 paper with current Chemistry practice without labelling original previews as PYQs.
200 original questions · explicit provenance labels
ChemistryPlate 60
NeetVellum atlas · fig. chemistry
60
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
For a binary solution with mole fractions xA and xB, which relation must hold?
- A. xA − xB = 1
- B. xA × xB = 1
- C. xA + xB = 1
- D. xA divided by xB = 1
Example 3 · difficulty 2/5
What is the molarity of a solution containing 0.50 mol solute in 250 mL of solution?
- A. 4.0 mol L⁻¹
- B. 0.125 mol L⁻¹
- C. 0.50 mol L⁻¹
- D. 2.0 mol L⁻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 2023 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 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.