Interpretation:
The oxidation state of vanadium ineach compoundis to be calculated.
Concept Introduction:
The oxidation state of a substance is defined as the number of electrons lost or gained in a chemical compound. Oxidation state could be zero, positive or negative. An atom which gains electron has a negative oxidation number and atom which loses electrons has a positive oxidation number.
The oxidation state of an atom in a free state is zero.
The oxidation state of a monatomic ion is equal to the charge (positive and negative) on the ion.
Each group possesses a specific oxidation state. The oxidation state of group I elements is
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