First slide

Solubility product(KSP)

Question

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

Easy

A

NH₄OHactivates NH₄Cl
B

NH₄Cl decreases the ionization of NH₄OH
C

NH₄Cl increases the ionization of NH₄OH
D

K_sp of NH₄OHis more than that of NH₄Cl

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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