Analytical ChemistryHard
Question
Consider the following statements ;
S1 : white fumes of boric acid are evolved if borax is heated with concentrated H2SO4.
S2 : Pb2+ and Ag+ ions (from concentrated solutions) both give white precipitate with Cl- ions.
S3 : dilute H2SO4 decomposes both carbonates and bicarbonates liberating CO2 gas.
S4 : Silver nitrate solution gives white precipitate with soluble sulphites.
and arrange in the order of true / false.
S1 : white fumes of boric acid are evolved if borax is heated with concentrated H2SO4.
S2 : Pb2+ and Ag+ ions (from concentrated solutions) both give white precipitate with Cl- ions.
S3 : dilute H2SO4 decomposes both carbonates and bicarbonates liberating CO2 gas.
S4 : Silver nitrate solution gives white precipitate with soluble sulphites.
and arrange in the order of true / false.
Options
A.T T T T
B.T F T F
C.F T F T
D.F F F F
Solution
S1 : Na2B4O7 + H2SO4 + 5H2O → 4H3BO3 ↑(white fumes) + 2Na+ + SO42-
S2 : Ag+ + Cl- → AgCl ↓ (white) Pb2+ + 2Cl- → PbCl2↓ (white)
S3 : CO32- + 2H+ → CO2↑ + H2O
S4 : Ag+ + SO32- → Ag2SO3 ↓ (white)
S2 : Ag+ + Cl- → AgCl ↓ (white) Pb2+ + 2Cl- → PbCl2↓ (white)
S3 : CO32- + 2H+ → CO2↑ + H2O
S4 : Ag+ + SO32- → Ag2SO3 ↓ (white)
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
A mixture of chlorides of copper, cadmium, chromium, iron and aluminium was dissolved in water. It was acidified with di...Zinc pieces are added to acidified solution of SO32-. Gas liberated can :...Which of the following compound(s) is /are insoluble in excess aqueous sodium hydroxide ?...Consider the following statements, S1 : yellow precipitate of SrCrO4 is soluble in large quantity of water.S2 : yellow p...Which of the following is/are correct for potassium ferrocyanide ?...