The oxidation number of Pr in is:

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

The oxidation number of Pr in

\mathrm{Pr}_6\mathrm{O}_{11}

is: (1)

\frac{22}{6}

(2)

\frac{20}{6}

(3)

3

(4)

4