Question

What is the oxidation state of Manganese in Manganese (VII) oxide?

• A. +7
• B. +5
• C. +3
• D. +1

Answer 1

The correct option is A

+7

Albert stock proposed a new system known as Stock system. In this system, the oxidation states are indicated by Roman numeral written in parentheses immediately after the name of the element. For example,

$CuO$ $\Rightarrow$ Copper(II) Oxide

$Sn{O}_2$ $\Rightarrow$ Tin((IV) Oxide

$FeC{l}_2$ $\Rightarrow$ Iron((II) Chloride

$M{n}_2{O}_7$ $\Rightarrow$ Manganese (VII) oxide

$K_{2}C{r}_2{O}_7$ $\Rightarrow$ Potassium Dichromate(VI)

$N{a}_{2}Cr{O}_4$ $\Rightarrow$ Sodium Chromate(VI)

$V_2{O}_5$ $\Rightarrow$ Vanadium(V) oxide

$C{u}_{2}O$ $\Rightarrow$ Copper(I) Oxide

$FeC{l}_3$ $\Rightarrow$ Iron((III) Chloride