NEET UG 2025: Here are 25 advanced questions from the Chemistry section of Inorganic Chemistry. This is part of a series of sets curated by the edufever team for NEET aspirants. Solving this will be very helpful for students.
These questions are designed to test deep conceptual clarity, analytical thinking, and advanced knowledge for NEET UG 2025.
Join NEET News 2025 NEET UG 2025: Inorganic Chemistry Quiz
1. Which of the following complexes shows the highest crystal field stabilization energy (CFSE)?
(a) [Fe(H₂O)₆]²⁺
(b) [Fe(CN)₆]⁴⁻
(c) [FeCl₆]³⁻
(d) [Fe(NH₃)₆]²⁺
2. Which species has the maximum bond angle?
(a) NH₃
(b) PH₃
(c) AsH₃
(d) SbH₃
3. The hybridization and shape of [XeF₅]⁻ ion are respectively:
(a) sp³d², Square pyramidal
(b) sp³d³, Pentagonal planar
(c) sp³d³, Pentagonal pyramidal
(d) sp³d², Octahedral
4. Which oxide is amphoteric in nature?
(a) Al₂O₃
(b) MgO
(c) CaO
(d) Na₂O
5. In the Haber process for ammonia synthesis, the catalyst used is:
(a) Vanadium pentoxide
(b) Finely divided Iron with Mo as a promoter
(c) Copper
(d) Nickel
6. Among the following, the complex that does NOT follow the 18-electron rule is:
(a) [Ni(CO)₄]
(b) [Fe(CO)₅]
(c) [Co(NH₃)₆]³⁺
(d) [Mn(CO)₅]⁺
7. Among the following, which compound exhibits the inert pair effect prominently?
(a) PbCl₂
(b) SnCl₄
(c) SiCl₄
(d) GeCl₄
8. Which one of the following is NOT isoelectronic with CO?
(a) N₂
(b) NO⁺
(c) CN⁻
(d) O₂⁻
9. Which halogen oxoacid has the maximum oxidation state of halogen?
(a) HClO₃
(b) HBrO₃
(c) HIO₄
(d) HClO₂
10. The least soluble alkaline earth metal sulfate in water is:
(a) MgSO₄
(b) CaSO₄
(c) BaSO₄
(d) SrSO₄
11. Which of the following interhalogen compounds has a T-shaped structure?
(a) IF₇
(b) ICl₃
(c) IF₅
(d) ClF₅
12. Which metal shows a maximum oxidation state of +7 among transition elements?
(a) Chromium
(b) Manganese
(c) Iron
(d) Copper
13. Which among the following species is paramagnetic?
(a) CN⁻
(b) O₂²⁻
(c) NO⁺
(d) CO
14. In the coordination complex [Cr(NH₃)₆]³⁺, the oxidation number and d-electron count of chromium, respectively are:
(a) +3, d³
(b) +3, d⁴
(c) +2, d⁴
(d) +2, d³
15. Which oxide of nitrogen is paramagnetic in nature?
(a) NO
(b) N₂O
(c) NO₂
(d) N₂O₅
16. Among the following, the strongest reducing agent is:
(a) F⁻
(b) Cl⁻
(c) Br⁻
(d) I⁻
17. Which pair of ions is colorless in an aqueous solution?
(a) Cu²⁺, Zn²⁺
(b) Sc³⁺, Ti³⁺
(c) Zn²⁺, Sc³⁺
(d) Ni²⁺, Cu²⁺
18. Which noble gas forms stable compounds easily?
(a) Neon
(b) Argon
(c) Xenon
(d) Helium
19. The geometry and bond angles of XeF₄ are:
(a) Square planar, 90°
(b) Tetrahedral, 109.5°
(c) Square pyramidal, 90°
(d) Octahedral, 90°
20. The atomicity of phosphorus in white phosphorus is:
(a) 1
(b) 2
(c) 4
(d) 6
21. The color of KMnO₄ is due to:
(a) d-d transition
(b) charge transfer transition
(c) presence of Mn⁷⁺ ion
(d) Ligand field splitting
22. The structure of the IF₇ molecule is:
(a) Pentagonal bipyramidal
(b) Square planar
(c) Octahedral
(d) Trigonal bipyramidal
23. The correct order of acidic strength of halogen acids (HX) is:
(a) HF > HCl > HBr > HI
(b) HI > HBr > HCl > HF
(c) HBr > HI > HF > HCl
(d) HF > HBr > HI > HCl
24. Which species is linear in shape?
(a) SF₄
(b) XeF₂
(c) IF₃
(d) ClF₃
25. The oxidation state of sulfur in tetrathionate ion (S₄O₆²⁻) is:
(a) +2.5
(b) +3
(c) +4
(d) +6
Answer Key:
1.(b), 2.(a), 3.(c), 4.(a), 5.(b), 6.(c), 7.(a), 8.(d), 9.(c), 10.(c), 11.(b), 12.(b), 13.(b), 14.(a), 15.(a), 16.(d), 17.(c), 18.(c), 19.(a), 20.(c), 21.(b), 22.(a), 23.(b), 24.(b), 25.(a)
Share your quiz scores in the comments section, and our experts will review your performance to provide personalized tips to help you improve your NEET score.
