Group of Cations

• Amphoteric Elements

  1. Beryllium
  2. Lead
  3. Aluminum
  4. Tin
  5. Zinc
• Amphoteric Hydroxides

  1. Be (OH)2
  2. Pb (OH)2
  3. Al (OH)3
  4. Sn (OH)2
  5. Zn (OH)2
  6. Cr (OH)2
• Group I (Silver Insoluble Chlorides)

  • Hg2 +2
  • Pb+2
  • Ag+
• GROUP 2-A (Acid Insoluble Sulfide)

  • Pb+2
  • Bi3+
  • Cu2+
  • Cd2+
• GROUP 2-B (Acid Soluble Sulfide)

  • Hg2+
  • Sb3+
  • Sb5+
  • As3+
  • As5+
  • Sn4+
• GROUP 3 (Base Insoluble Sulfides)

  • Co
  • Zn
  • Fe
  • Al
  • Cr
  • Mn
  • Ni
• GROUP 4 (Sulfate Insoluble)

  • Ba
  • Ca
  • Sr
  • Mg
• GROUP 5

  • Li
  • NH4
  • Na
  • K
  • Cs
  • Rb
• Electrochemistry


  This is the study of chemical processes that cause electrons to move.