Analytical ChemistryHard
Question
Consider the following statements,
S1 : precipitate of lead thiosulphate is soluble in excess sodium thiosulphate (Na2S2O3).
S2 : moderately concentrated solution of Ba2+ ions gives white precipitate of BaS2O3 with hypo.
S3 : white precipitate of CaSO3 dissolves when excess of SO2 gas is passed through it.
S4 : Hg2+ + S2O32- + H2O → HgS↓ + SO42- + 2H+
and arrange in the order of true / false.
S1 : precipitate of lead thiosulphate is soluble in excess sodium thiosulphate (Na2S2O3).
S2 : moderately concentrated solution of Ba2+ ions gives white precipitate of BaS2O3 with hypo.
S3 : white precipitate of CaSO3 dissolves when excess of SO2 gas is passed through it.
S4 : Hg2+ + S2O32- + H2O → HgS↓ + SO42- + 2H+
and arrange in the order of true / false.
Options
A.T F T T
B.T T F F
C.T T T T
D.T F T F
Solution
S1 : PbS2O3↓ + 2S2O32- → [Pb(S2O3)2]2- (soluble complex).
S2 : Ba2+ + S2O32- → BaS2O3 ↓ (white).
S3 : CaSO3 + H2O + SO2 → Ca(HSO3)2.
S4 : Correct reaction, Hg2+ + S2O32- + H2O → HgS↓ + SO42- + 2H+.
S2 : Ba2+ + S2O32- → BaS2O3 ↓ (white).
S3 : CaSO3 + H2O + SO2 → Ca(HSO3)2.
S4 : Correct reaction, Hg2+ + S2O32- + H2O → HgS↓ + SO42- + 2H+.
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
An object 2.4 m in front of a lens forms a sharpimage on a film 12 cm behind the lens. A glassplate 1 cm thick, of refra...Which of the following statement (s) is (are) correct with reference to the ferrous and ferrici ions?...27 g of aluminium react completely with how many grams of oxygen ?...Na2 SO4 + BaCl2 → White precipitate Aqueous solution. Gas ′G′ is evolvedThe gas ′G′ will s...The ion that cannot be precipitated by both HCl and H2S is :...