Which of the following salt solutions would coagulate the colloid solution formed when FeCl₃ is added to NaOH solution, at the fastest rate?

(B) 10 mL of 0.2 mol dm ⁻³ AlCl ₃

(A) 10 mL of 0.15 mol dm ⁻³ CaCl ₂

(C) 10 mL of 0.1 mol dm ⁻³ Na ₂ SO ₄

(D) 10 mL of 0.1 mol dm ⁻³ Ca ₃ (PO ₄) ₂

Surface Chemistry: JEE Main 2023 Chemistry question

JEE Main 2023 · 29 Jan, Morning shift · Q2279

JEE Main 202329 Jan, Morning shiftChemistryEasySurface Chemistry63× since 2002

Which of the following salt solutions would coagulate the colloid solution formed when

\mathrm{FeCl_3}

is added to

\mathrm{NaOH}

solution, at the fastest rate?

JEE Main 2023 · 29 Jan, Morning shift · Q2279

JEE Main 202329 Jan, Morning shiftChemistryEasySurface Chemistry63× since 2002

Which of the following salt solutions would coagulate the colloid solution formed when

\mathrm{FeCl_3}

is added to

\mathrm{NaOH}

solution, at the fastest rate?