First slide

IUPAC Nomenclature

Question

The oxidation number of chromium in sodium tetrafluorido oxochromate complex is

Moderate

A

II
B

IV
C

VI
D

III

Solution

$\begin{array}{l} {Na}_{2} [{CrF}_{4} O] \\ x + 4 (- 1) + (- 2) = - 2 \\ x - 6 = - 2 \Rightarrow x = + 4 \end{array}$

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