Analytical ChemistryHard
Question
Which of the following solutions give white precipitate with Pb(NO3)2 as well as with Ba(NO3)2 ?
Options
A.Sodium chloride
B.Sodium sulphate
C.Disodium hydrogen phosphite
D.Sodium chromate
Solution
(A) Pb(NO3)2 + 2NaCl → PbCl2 ↓ (white) + 2NaNO3
Ba(NO3)2 + 2NaCl → BaCl2 + 2NaNO3 ; BaCl2 is soluble in water
(B) Na2SO4 gives white precipitate of PbSO4 and BaSO4 with Pb(NO3)2 and Ba(NO3)2 respectively.
(C) Disodium hydrogen phosphite gives white precipitate with both salts.
HPO32- + Ba2+ → BaHPO3 ↓ (white) ; HPO32 + Pb2+ → PbHPO3↓ (white)
(D) Pb2+ + CrO42- → PbCrO4 ↓ (yellow) ; Ba2+ + CrO42- → BaCrO4 ↑ (yellow)
Ba(NO3)2 + 2NaCl → BaCl2 + 2NaNO3 ; BaCl2 is soluble in water
(B) Na2SO4 gives white precipitate of PbSO4 and BaSO4 with Pb(NO3)2 and Ba(NO3)2 respectively.
(C) Disodium hydrogen phosphite gives white precipitate with both salts.
HPO32- + Ba2+ → BaHPO3 ↓ (white) ; HPO32 + Pb2+ → PbHPO3↓ (white)
(D) Pb2+ + CrO42- → PbCrO4 ↓ (yellow) ; Ba2+ + CrO42- → BaCrO4 ↑ (yellow)
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Given below are two statements:Statement I: Griss-Ilosvay test is used for the detection of nitrite ion, which involves ...Turnbull′s blue is a ..............Which of the following compounds on reaction with NaOH and Na2O2 gives yellow colour solution?...There are four test tubes containing dilute HCl, BaCl2, CdCl2 and KNO3 solutions. Which of the following reagents will h...A black sulphide is formed by the action of H2S on :...