Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts Hg2Cl2, Cr2(SO4)3, BaSO4 and CrCl3 respectively ?

Question

Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts Hg2Cl2, Cr2(SO4)3, BaSO4 and CrCl3 respectively ? (A) BaSO4 > Hg2Cl2 > Cr2(SO4)3 > CrCl3 (B) BaSO4 > Hg2Cl2 > CrCl3 > Cr2(SO4)3 (C) BaSO4 > CrCl3 > Hg2Cl2 > Cr2 (SO4 )3 (D) Hg2Cl2 > BaSO4 > CrCl3 > Cr2 (SO4 )3

Tardigrade Admin · Accepted Answer

Cr 2( SO 4)3 leftharpoons 2 underset2sCr ++++3 underset3sSo 4-- Ks p(2 s)2(3 s)3=4 s2 × 27 s3=108 s5 s=((Ks p/108))1 / 5 Hg 2 Cl 2 leftharpoons 2 underset2sHg 2++2 underset2sCl - Ks p=(2 s)2 ×(2 s)2=16 s4 s=((Ks p/16))1 / 4 BaSO 4 leftharpoons undersetsBa ++ undersetsSO 4-- Ks p=s2 s=√Ks p CrCl 2 leftharpoons undersetsCr 3++3 underset3sCl - Ks p=s ×(3 s)3=27 s4 s=((Ks p/27))1 / 4 Hence the correct order of solubilities of salts is √Ks p>((Ks p/16))1 / 4>((Ks p/27))1 / 4>((Ks p/108))1 / 5

Q. Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts $H g_{2} C l_{2}, C r_{2} (S O_{4})_{3}, B a S O_{4}$ and $C r C l_{3}$ respectively ?

$B a S O_{4} > H g_{2} C l_{2} > C r_{2} (S O_{4})_{3} > C r C l_{3}$

$B a S O_{4} > H g_{2} C l_{2} > C r C l_{3} > C r_{2} (S O_{4})_{3}$

$B a S O_{4} > C r C l_{3} > H g_{2} C l_{2} > C r_{2} (S O_{4})_{3}$

$H g_{2} C l_{2} > B a S O_{4} > C r C l_{3} > C r_{2} (S O_{4})_{3}$

Q. Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts Hg2​Cl2​,Cr2​(SO4​)3​,BaSO4​ and CrCl3​ respectively ?

BaSO4​>Hg2​Cl2​>Cr2​(SO4​)3​>CrCl3​

BaSO4​>Hg2​Cl2​>CrCl3​>Cr2​(SO4​)3​

BaSO4​>CrCl3​>Hg2​Cl2​>Cr2​(SO4​)3​

Hg2​Cl2​>BaSO4​>CrCl3​>Cr2​(SO4​)3​

Q. Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts $H g_{2} C l_{2}, C r_{2} (S O_{4})_{3}, B a S O_{4}$ and $C r C l_{3}$ respectively ?

$B a S O_{4} > H g_{2} C l_{2} > C r_{2} (S O_{4})_{3} > C r C l_{3}$

$B a S O_{4} > H g_{2} C l_{2} > C r C l_{3} > C r_{2} (S O_{4})_{3}$

$B a S O_{4} > C r C l_{3} > H g_{2} C l_{2} > C r_{2} (S O_{4})_{3}$

$H g_{2} C l_{2} > B a S O_{4} > C r C l_{3} > C r_{2} (S O_{4})_{3}$