Example 1 · difficulty 2/5
Which pair of aqueous ions is expected to be colourless because d–d transitions are not possible?
- A. Sc³⁺ and Zn²⁺
- B. Ti³⁺ and Cu²⁺
- C. V³⁺ and Ni²⁺
- D. Cr³⁺ and Fe²⁺
2026 source guide · Chemistry
NEET 2026 Chemistry D- and F-Block Elements Questions
Use this page to connect the official 2026 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
electronic configurations, oxidation states, colour, magnetism and lanthanoid trends.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 2/5
A transition-metal ion absorbs a particular region of visible light. What colour is observed according to the NCERT explanation?
- A. Exactly the same colour as the absorbed light
- B. The colour complementary to the absorbed light
- C. Only white, because all visible wavelengths are reflected equally
- D. Only black, because absorption of one region removes all visible light
Example 3 · difficulty 1/5
Which ion is expected to be coloured in aqueous solution because it has a partially filled d subshell?
- A. Sc³⁺
- B. Ti⁴⁺
- C. Ni²⁺
- D. Cu⁺
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 2026 Chemistry D- and F-Block Elements 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 2026 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.