25.0 mL of 0.050 M $\mathrm{Ba(NO_3)_2}$ is mixed with 25.0 mL of 0.020 M NaF. $\mathrm{K_{sp}}$ of $\mathrm{BaF_2}$ is $0.5\times10^{-6}$ at 298 K. The ratio of $[\mathrm{Ba^{2+}}]\ [\mathrm{F^-}]^2$ and $\mathrm{K_{sp}}$ is ___________. (Nearest integer)

JEE Main 2023 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 13 April 2023, Shift 1, Chemistry Q85

Question 85 of 90 in this shift, Chemistry question 25 of 30, Section B.

25.0 mL of 0.050 M

\mathrm{Ba(NO_3)_2}

is mixed with 25.0 mL of 0.020 M NaF.

\mathrm{K_{sp}}

\mathrm{BaF_2}

0.5\times10^{-6}

at 298 K. The ratio of

[\mathrm{Ba^{2+}}]\ [\mathrm{F^-}]^2

and

\mathrm{K_{sp}}

is ___________. (Nearest integer)

Official answer

NTA final key.

Chapter: Equilibrium
Topic: Solubility Product
Idea tested: Precipitation Condition

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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.