d and f BLOCK ELEMENTS

What is the common oxidation state of Cerium (Ce) in its compounds, besides +3?

• +1
• +2
• +4
• +5

What is the common oxidation state of Lanthanum (La) in its compounds?

• +1
• +2
• +3
• +4

What is the usual oxidation state of Vanadium (V) in Vanadium Pentoxide (V2O5)?

• +2
• +3
• +4
• +5

What is the usual oxidation state of Chromium (Cr) in Potassium Dichromate (K2Cr2O7)?

• +3
• +4
• +5
• +6

What is the usual oxidation state of Manganese (Mn) in Potassium Permanganate (KMnO4)?

• +2
• +4
• +6
• +7