Question 121
What is the common oxidation state of Cerium (Ce) in its compounds, besides +3?
Question 122
What is the common oxidation state of Lanthanum (La) in its compounds?
Question 123
What is the usual oxidation state of Vanadium (V) in Vanadium Pentoxide (V2O5)?
Question 124
What is the usual oxidation state of Chromium (Cr) in Potassium Dichromate (K2Cr2O7)?
Question 125
What is the usual oxidation state of Manganese (Mn) in Potassium Permanganate (KMnO4)?