Analytical ChemistryHard

Question

White precipitate of PbSO4 gets dissolved in :

Options

A.concentrated H2SO4 on heating
B.concentrated NaOH
C.(NH4)2CO3
D.dilute HNO3

Solution

(A) PbSO4↓ + H2SO4 (hot and concentrated) →  Pb2+ + 2HSO4- (soluble)
(B) It dissolves forming Na2[Pb(OH)4] soluble complex.

Create a free account to view solution

View Solution Free
Topic: Analytical Chemistry·Practice all Analytical Chemistry questions

More Analytical Chemistry Questions

When a salt is heated with dilute H2SO4 and KMnO4 solution, the pink colour of KMnO4 is discharged, the salt is :..." X " is an oxoanion of the lightest element of group 7 (in the periodic table). The metal is in +6 oxidation state in "...Which one of the following statements is correct?...Compound (X) when heated with KOH solution it produce colorless poisonous gas (Y) having rotten fish smell and solution ...A coloured solution of a salt gives following reactions.(i) It gives white precipitate with sodium hydroxide which becom...