The third group radicals are precipitated as hydroxides by means of NH4OH in presence of NH4Cl because

NH4Cl exerts common ion effect and suppresses the dissociation of NH4OH. The third group radicals require a low concentration of OH- for precipitate formation.

The third group radicals are precipitated as hydroxides by means of NH4OH in presence of NH4Cl because

NH4Cl exerts common ion effect and suppresses the dissociation of NH4OH. The third group radicals require a low concentration of OH- for precipitate formation.

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The third group radicals are precipitated as hydroxides by means of NH₄OH in presence of NH₄Cl because

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NH₄OHactivates NH₄Cl

NH₄Cl decreases the ionization of NH₄OH

NH₄Cl increases the ionization of NH₄OH

K_sp of NH₄OHis more than that of NH₄Cl

answer is B.

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Detailed Solution

NH₄Cl exerts common ion effect and suppresses the dissociation of NH₄OH. The third group radicals require a low concentration of OH^- for precipitate formation.

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