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Friday, 9 October

NEET UG 2017 · Chemistry · Question 82

NEET 2017 Chemistry, question 82

Question 82 of the NEET 2017 paper (code A) is a Chemistry question from The p-Block Elements (Class 12). Its idea, Reducing Properties of SO2, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 2.

Updated 2026-10-08

Q82 · Chemistry

Name the gas that can readily decolourise acidified KMnO4\mathrm{KMnO_4} solution :

  1. 1CO2\mathrm{CO_2}
  2. 2SO2\mathrm{SO_2}Official answer
  3. 3NO2\mathrm{NO_2}
  4. 4P2O5\mathrm{P_2O_5}

Official answer: option 2 · CBSE official answer key

Same idea

The only question on Reducing Properties of SO2

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

Reducing Properties of SO2: 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.

The p-Block Elements (Class 12): questions per paper

0363’171’185’192’203’212’222’232’242’251’26