Example 1 · difficulty 3/5
The spin-only magnetic moment of [Fe(CN)₆]³⁻ is:
- A. 5.92 BM
- B. 2.83 BM
- C. 3.87 BM
- D. 1.73 BM
2017 source guide · Chemistry
NEET 2017 Chemistry Coordination Compounds Questions
Connect the official 2017 paper with current Chemistry practice without labelling original previews as PYQs.
250 original questions · explicit provenance labels
ChemistryPlate 57
NeetVellum atlas · fig. chemistry
57
What to master
nomenclature, isomerism, bonding, crystal fields and magnetic behaviour.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 3/5
Which of the following pairs of compounds represents ionisation isomerism?
- A. [Co(NH₃)₅(NO₂)]²⁺ and [Co(NH₃)₅(ONO)]²⁺
- B. [Co(NH₃)₅Br]SO₄ and [Co(NH₃)₅(SO₄)]Br
- C. [Co(NH₃)₆][Cr(CN)₆] and [Cr(NH₃)₆][Co(CN)₆]
- D. [Cr(H₂O)₆]Cl₃ and [Cr(H₂O)₅Cl]Cl₂·H₂O
Example 3 · difficulty 2/5
[Ni(en)₃]²⁺ is considerably more stable than [Ni(NH₃)₆]²⁺ even though both are octahedral complexes of Ni²⁺. The correct reason is:
- A. chelate effect: the bidentate en ligand forms three five-membered rings, and the extra stability is largely of entropic origin
- B. en is a much stronger field ligand than NH₃ in the spectrochemical series
- C. en is bidentate, so the coordination number of nickel becomes 9
- D. [Ni(en)₃]²⁺ is diamagnetic whereas [Ni(NH₃)₆]²⁺ is paramagnetic
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 2017 Chemistry Coordination Compounds 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 2017 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.