JEE Main 2022 · ChemistryMultiple choiceSingle correctMediumCalculation

JEE Main 25 June 2022, Shift 2, Chemistry Q64

Question 64 of 90 in this shift, Chemistry question 4 of 30, Section A.

The

\mathrm{K_{sp}}

for bismuth sulphide (

\mathrm{Bi_2S_3}

) is

1.08 \times 10^{-73}

. The solubility of

\mathrm{Bi_2S_3}

\mathrm{mol\ L^{-1}}

at 298 K is

(1) $1.0 \times 10^{-15}$ Official answer
(2) $2.7 \times 10^{-12}$
(3) $3.2 \times 10^{-10}$
(4) $4.2 \times 10^{-8}$

Official answer

Option 1

NTA final key.

Chapter: Equilibrium
Topic: Solubility Product
Idea tested: Solubility-Ksp Relationship

Same idea in other shifts

Asked 8× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.