Which of the following happens when NH₄OH is added gradually to the solution containing 1M A²⁺ and 1M B³⁺ ions? Given: K sp [A(OH)₂]=9×10⁻¹⁰ and K sp [B(OH)₃]=27×10⁻¹⁸ at 298 K.

(C) B(OH)₃ will precipitate before A(OH)₂

(A) A(OH)₂ will precipitate before B(OH)₃

(B) A(OH)₂ and B(OH)₃ will precipitate together

(D) Both A(OH)₂ and B(OH)₃ do not show precipitation with NH₄OH

Equilibrium: JEE Main 2025 Chemistry question

JEE Main 2025 · 23 Jan, Morning shift · Q66

JEE Main 202523 Jan, Morning shiftChemistryMediumEquilibrium123× since 2002

Which of the following happens when

\mathrm{NH_4OH}

is added gradually to the solution containing 1M

\mathrm{A^{2+}}

and 1M

\mathrm{B^{3+}}

ions? Given :

K_{sp}[\mathrm{A(OH)_2}]=9\times10^{-10}

and

K_{sp}[\mathrm{B(OH)_3}]=27\times10^{-18}

at 298 K.