Which of the following are paramagnetic? A. [NiCl4]^2- B. Ni(CO)4 C. [Ni(CN)4]^2- D. [Ni(H2O)6]^2+ E. Ni(PPh3)4 Choose the correct answer from the options given below:

NEET UG 2025 · Chemistry · Question 51

NEET 2025 Chemistry, question 51

Question 51 of the NEET 2025 paper (code 45) is a Chemistry question from Coordination Compounds. Its idea, Nickel Complex Geometry Trio, was asked twice, in 2018 and 2025, across NEET 2017–2026. The NTA final answer key gives option 3.

Updated 2026-10-08

Q51 · Chemistry

[NiCl_4]^{2-}

1 A and C only 2 B and E only 3 A and D only Official answer 4 A, D and E only

Official answer: option 3 · NTA final answer key

Same idea

Nickel Complex Geometry Trio, in other papers

NEET asked this idea twice, in 2018 and 2025. The other question below.

\mathrm{[Ni(CO)_4]}

Nickel Complex Geometry Trio: 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.

Chapter analysis Study this chapter Practise this chapter

Nickel Complex Geometry Trio, in other papers

Coordination Compounds in ten years of NEET

Coordination Compounds: questions per paper