Learn

Friday, 9 October

NEET UG 2019 · Chemistry · Question 75

NEET 2019 Chemistry, question 75

Question 75 of the NEET 2019 paper (code P1) is a Chemistry question from Coordination Compounds. Its idea, Hexacyanoferrate vs Hexafluoroferrate Comparison, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q75 · Chemistry

What is the correct electronic configuration of the central atom in K4[Fe(CN)6]K_4[Fe(CN)_6] based on crystal field theory ?

  1. 1t2g4eg2t_{2g}^4 e_g^2
  2. 2t2g6eg0t_{2g}^6 e_g^0Official answer
  3. 3e3t23e^3 t_2^3
  4. 4e4t22e^4 t_2^2

Official answer: option 2 · NTA final answer key

Same idea

The only question on Hexacyanoferrate vs Hexafluoroferrate Comparison

No other NEET paper from 2017–2026 tested this exact idea.

Hexacyanoferrate vs Hexafluoroferrate Comparison: every question and how it was framed

The chapter

Coordination Compounds in ten years of NEET

27 questions from 2017–2026, asked in 10 of 10 papers, about 2.6 a paper. Crystal Field Theory alone had 10.

Coordination Compounds: questions per paper

0364’173’181’191’202’212’222’233’243’256’26