Example 1 · difficulty 1/5
The ground state electronic configuration of chromium (Z = 24) is:
- A. [Ar] 3d⁴ 4s²
- B. [Ar] 3d⁵ 4s¹
- C. [Ar] 3d⁶ 4s⁰
- D. [Ar] 3d³ 4s²
Current-syllabus practice · Chemistry
NEET Chemistry D- and F-Block Elements Questions
D- and F-Block Elements practice focused on electronic configurations, oxidation states, colour, magnetism and lanthanoid trends. Every preview below comes from NeetVellum's live original bank—not an unverified PYQ reconstruction.
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
The lanthanoid contraction is primarily attributed to:
- A. poor shielding of nuclear charge by 4f electrons
- B. perfect shielding of nuclear charge by 4f electrons
- C. a steady increase in atomic size across the series
- D. progressive filling of poorly shielding 5d electrons
Example 3 · difficulty 2/5
Which of the following ions is colourless in aqueous solution?
- A. Cu²⁺
- B. Ni²⁺
- C. Fe²⁺
- D. Zn²⁺
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
How many D- and F-Block Elements NEET questions are available?
NeetVellum currently publishes 118 original, verified questions across the linked canonical chapter.
How should I revise D- and F-Block Elements for NEET?
Attempt questions before rereading, classify each miss, repair the specific concept, and re-practice after a delay until the error pattern disappears.