NEET UG 2019 · Chemistry · Question 48
NEET 2019 Chemistry, question 48
Question 48 of the NEET 2019 paper (code P1) is a Chemistry question from The p-Block Elements (Class 12). Its idea, Structures of Halogen Oxides and Oxoacids, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q48 · Chemistry
The correct structure of tribromooctaoxide is :
The figure, described in words
Four drawn Lewis-type structures of Br3O8 with different placements of Br=O and Br–O⁻ bonds.
- 1[structure: (O=)₃Br–Br(=O)₂–Br(=O)₃]Official answer
- 2[structure: (O=)₃Br–Br(=O)(–O⁻)–Br(=O)₂(–O⁻)]
- 3[structure: (⁻O)₂(O=)Br–Br(=O)₂–Br(=O)(–O⁻)₂]
- 4[structure: (O=)₃Br–Br(–O⁻)₂–Br(=O)₂(–O⁻)]
Official answer: option 1 · NTA final answer key
Same idea
The only question on Structures of Halogen Oxides and Oxoacids
No other NEET paper from 2017–2026 tested this exact idea.
Structures of Halogen Oxides and Oxoacids: every question and how it was framed
The chapter
The p-Block Elements (Class 12) in ten years of NEET
23 questions from 2017–2026, asked in 10 of 10 papers, about 2.2 a paper. p-Block Elements (Groups 15-18) alone had 23.