Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumSolubility ProductHard2 minPYQ_2020

ChemistryHardsingle choice

A solution of $NH_{4} Cl$ and $NH_{3}$ has $pH = 8.0.$ Which of the following hydroxides may be precipitated when this solution is mixed with equal volume of 0.2 M of metal ion.

Options:

Answer:

Solution:

$pH = 8, pOH = 6; [OH^{-}] = 1 0^{- 6} M$ Ionic product of $Fe (OH)_{2} = 0.2 \times (1 \times 1 0^{- 6})^{2}$ $= 2 \times 1 0^{- 13} > K_{sp} (= 8.1 \times 1 0^{- 16})$

Stream:BITSATSubject:ChemistryTopic:Ionic EquilibriumSubtopic:Solubility Product

⏱ 2mℹ️ Source: PYQ_2020

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