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NEET UG 2020 · Chemistry · Question 92

NEET 2020 Chemistry, question 92

Question 92 of the NEET 2020 paper (code E1) is a Chemistry question from Equilibrium. Its idea, Common-Ion Effect on Solubility, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.

Updated 2026-10-08

Q92 · Chemistry

Find out the solubility of Ni(OH)2\mathrm{Ni(OH)_2} in 0.1 M NaOH. Given that the ionic product of Ni(OH)2\mathrm{Ni(OH)_2} is 2×10−152\times10^{-15}.

  1. 12×10−132\times10^{-13} MOfficial answer
  2. 22×10−82\times10^{-8} M
  3. 31×10−131\times10^{-13} M
  4. 41×1081\times10^{8} M

Official answer: option 1 · NTA final answer key

Same idea

The only question on Common-Ion Effect on Solubility

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

Common-Ion Effect on Solubility: every question and how it was framed

The chapter

Equilibrium in ten years of NEET

26 questions from 2017–2026, asked in 10 of 10 papers, about 2.5 a paper. pH and Buffer Solutions alone had 13.

Chapter analysisStudy this chapterPractise this chapter

Equilibrium: questions per paper

0363’173’183’192’201’212’222’235’244’251’26