Assign oxidation number to the underlined elements in the followi… - Vidyadip

Question

Assign oxidation number to the underlined elements in the following species:

K₂MnO₄

✓

Answer

$\begin{matrix} +1&\text{x}&-2\\\text{K}_2&\text{ Mn}&\ \text{ O}_4\end{matrix}$

Then, we have

2(+1) + x + 4(-2) = 0

⇒ 2 + x - 8 = 0

⇒ x = +6

Hence, the oxidation number of Mn is +6.

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