CONFIRMATORY TEST FOR CATIONS Flashcards
Ion: Silver (Ag)
Reagent: Hydrochloric Acid (HCl)
Product: Silver Chloride (AgCl)
Result:
A. White to gray ppt
B. Canary yellow ppt
C. Brownish red ppt
A. White to gray ppt
Ion: Silver (Ag)
Reagent: Potassium Chromate (K2CrO4)
Product: Silver Chromate (Ag2CrO4)
Result:
A. White to gray ppt
B. Canary yellow ppt
C. Brownish red ppt
C. Brownish red ppt
Ion: Silver (Ag)
Reagent: Potassium Iodide (KI)
Product: Silver Iodide (Agl)
Result:
A. White to gray ppt
B. Canary yellow ppt
C. Brownish red ppt
B. Canary yellow ppt
Ion: Lead (Pb)
Reagent: Hydrochloric acid (Hcl)
Product: Lead (ll) chloride (PbCl2)
Result:
A. Yellow ppt
B. Black ppt
C. White crystal ppt
C. White crystal ppt
Ion: Lead (Pb)
Reagent: Potassium Chromate (K2CrO4)
Product: Lead Chromate (PbCrO4)
Result:
A. Yellow ppt
B. Black ppt
C. White crystal ppt
A. Yellow ppt
Ion: Lead (Pb)
Reagent: Potassium Iodide (Kl)
Product: Lead (ll) Iodide
Result:
A. Blue ash
B. Yellow ppt
C. Reddish brown
Yellow ppt
Ion: Hg2+2
Reagent: Hydrochloric Acid (Hcl)
Product: Mercury (l) Chloride (Hg2Cl2)
Result:
A. Orange red ppt
B. Green ppt
C. White curdy opt
C. White curdy ppt
Ion: Hg2+2
Reagent: Potassium Chromate (K2CrO4)
Product: Mercury (ll) Chromate Hg2CrO4
Result:
A. Orange red ppt
B. Green ppt
C. White curdy opt
A. Orange red ppt
Ion: Hg2+2
Reagent: Potassium Iodide (Kl)
Product: Mercury Iodide (Hg2l2)
Result:
A. Orange red ppt
B. Green ppt
C. White curdy opt
B. Green ppt
Ion: Bismuth Cation (Bi+3)
Reagent: Sodium Stannite (Na2SnO2)
Product: Bismuth (Bi)
Result:
A. Yellow ppt
B. Blue ppt
C. Black ppt
C. Black ppt
Ion: Cupric (Cu+2)
Reagent: Potassium Ferrocyanide K4Fe(CN)6
Product: Copper (ll) Ferrocyanide Cu2Fe(CN)6
Result:
A. White ppt
B. Amorphous reddish brown ppt
C. White to gray ppt
A. Amorphous reddish brown ppt
Ion: Cupric (Cu+2)
Reagent: Potassium Ferrocyanide K4Fe(CN)6
Product: Cadmium Ferrocyanide Cd2Fe(CN)6
Result:
A. White ppt
B. Amorphous reddish brown ppt
C. White to gray ppt
A. White ppt
Ion: Mercury (ll) Ion Hg+2)
Reagent: Tin (ll) Chloride (SnCl2)
Product: Mercury (l) Chloride to Mercury (Hg)
Result:
A. White ppt
B. Amorphous reddish brown ppt
C. White to gray ppt
C. White to gray ppt
Ion: Mercury (ll) Ion (Hg+2)
Reagent: Potassium Iodide (Kl)
Product: Mercury (ll) Iodide (HgI2)
Result:
A. White to gray ppt
B. Scarlet red
C. Yellow ppt
B. Scarlet red ppt
Ion: Sb+3
Reagent: Aluminum (Al)
Product: Antimony (Sb)
Result:
A. Black ppt
B. Red ppt
C. Yellow ppt
A. Black ppt
Ion: As+3
Reagent: Sodium Hydroxide (NaOH),
Aluminum (Al)
Product: Arsine (AsH3), Silver (Ag
Result:
A. Colorless gas, black ppt
B. Colorless sol’n, white to gray ppt
C. Yellow solution
A. Colorless gas, black ppt
Ion: Sn+2
Reagent: HgCI2
Product: Hg2Cl2 to Hg
Result:
A. Green ash
B. White to gray ppt
C. Brownish red ppt
B. White to gray ppt
Ion: Sn+4
Reagent: HgCI2
Product: HgCI2 to Hg Reduction of Sn+4 to Sn+2
Result:
A. White to gray ppt
B. Colorless sol’n white to gray ppt
C. Brownish red ppt
B. Colorless sol’n white to gray ppt
Ion: Al+3
Reagent: Aluminon test (NH4OH aluminon)
Product: Al(OH)³
Result:
A. Canary yellow ppt
B. Green ppt
C. White gelatinous ppt to red lake with aluminon
C. White gelatinous ppt to red lake with aluminon
Ion: Al+3
Reagent: Thenards Blue test (NH4O, Co(NO3)2
Product: Co(AlO)2
Result:
A. Purple solution
B. Blue ash
C. Colorless sol’n white to gray ppt
B. Blue ash
Ion: Cr+3
Reagent: NaOH, H2O2 or Na2O2
Product: Na2CrO4
Result:
A. Yellow solution
B. Yellow ppt
C. Canary yellow
A. Yellow solution
Ion: Cr+3
Reagent: AgNO3
Product: Ag2CrO4
Result:
A. Yellow solution
B. Blue solution
C. Brownish red ppt
C. Brownish red ppt
Ion: Cr+3
Reagent: BaCI2
Product: BaCrO4
Result:
A. Yellow ppt
B. Blue solution
C. Black ppt
A. Yellow ppt
Ion: Cr+3
Reagent: Pb(Ch3COO)2
Product: CrO4
Result:
A. Purple solution
B. Blue ppt
C. Yellow ppt
C. Yellow ppt
Ion: Zn+2
Reagent: K4Fe(CN)6
Product: Zn2Fe(CN)6
Result:
A. White ppt
B. White to gray ppt
C. White curdy ppt
A. White ppt
Ion: Zn+2
Reagent: Rinmann’s Green test Co(NO3), NH4OH
Product: CoZnO2
Result:
A. Green Ash
B. Black ppt
C. Blue ash
A. Green Ash
Ion: Mn+2
Reagent: HNO3, NaBiO3
Product: HMnO4
Result:
A. Brownish red ppt
B. Purple solution
C. Yellow solution
B. Purple solution
Ion: Fe+3
Reagent: KSCN
Product:FeSCN
Result:
A. Brownish red ppt
B. Scarlet red ppt
C. Blood red soln ppt
C. Blood red soln ppt
Ion: Fe+3
Reagent: K3Fe (CN)6
Product: Fe4(Fe(CN)6)3
Result:
A. Brown soln
B. Blood red soln
C. Prussian blue ppt
C. Prussian blue ppt
Ion: Fe+3
Reagent: K3Fe(CN)6
Product: Fe(CN)3
Result:
A. Brown soln
B. Prussian blue
C. Yellow sol
A. Brown soln
Ion: Fe+2
Reagent: K4Fe(CN)6
Product: Fe2Fe(CN)6
Result:
A. White to black ppt
B. White to blue ppt
C. White to gray ppt
B. White to blue ppt
Ion: Fe+2
Reagent: K3Fe(CN)6
Product: Fe3(Fe(CN)6)2
Result:
A. White to blue ppt
B. Gray ppt
C. Blue ppt
C. Blue ppt
Ion: Co+2
Reagent: KNO2, HAC
Product: K3Co(NO2)6
Result:
A. Yellow ppt
B. Yellow soln
C. Green ppt
A. Yellow ppt
Ion: Ni+2
Reagent: NH4OH, C8H7N2O2
Product: C8H14O4N4Ni
Result:
A. Blue ppt
B. Brown soln
C. Cherry red ppt
C. Cherry red ppt
Ion: Ba+2
Reagent: K2CrO4
Product: BaCrO4
Result:
A. Cherry red ppt
B. Prussian blue ppt
C. Yellow ppt
C. Yellow ppt
Ion: Ba+2
Reagent: (NH4)2SO4
Product: BaSO4
Result:
A. White to blue ppt
B. White ppt
C. White to gray ppt
B. White ppt
Ion: Ba+2
Reagent: Na2HPO4, NH4OH
Product: Ba3PO4
Result:
A. White amorphous ppt
B. White gelatinous ppt
C. White to blue ppt
A. White amorphous ppt
