A solution prepared in conc. HCl sometimes gi | vedclass

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Question

(D) When water is added to a solution containing $Sb^{3+}$ or $Bi^{3+}$ ions in concentrated $HCl$,hydrolysis occurs.$Sb^{3+} + H_2O + Cl^{-} 	o SbOC

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$Sb^{3+}$ or $Bi^{3+}$ or both

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(D) When water is added to a solution containing $Sb^{3+}$ or $Bi^{3+}$ ions in concentrated $HCl$,hydrolysis occurs.$Sb^{3+} + H_2O + Cl^{-} 	o SbOCl 	ext{ (white turbidity)} + 2H^+$$Bi^{3+} + H_2O + Cl^{-} 	o BiOCl 	ext{ (white turbidity)} + 2H^+$This reaction occurs because the dilution decreases the concentration of $HCl$,shifting the equilibrium towards the formation of insoluble oxychlorides. Thus,the correct option is $(D)$.

$A$ solution prepared in conc. $HCl$ sometimes gives white turbidity even in the absence of $1^{st}$ group,when water is added to it. It is due to the presence of

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