Oxidation numbers of $M n$ in its compounds $M n C l_{2}$ , $M n (O H)_{3}$ , $M n O_{2}$ and $K M n O_{4}$ respectively are:

+2, +4 ,+7 , +3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

+2, +3, +4, +7

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

+7, +3, +2, +4

No worries! We‘ve got your back. Try BYJU‘S free classes today!

+7, +4, +3, +2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C +2, +3, +4, +7
Consider the oxidation state of $M n$ as $x$ .
The charges on $C l, O, H, K$ are $- 1, - 2, + 1, + 1$ respectively. Therefore, the oxidation states of $M n$ in its given compounds can be calculated as follows:

$M n C l_{2}$ $\to$ $x + (- 2) = 0$ $\Rightarrow$ $x = + 2$
$M n (O H)_{3} \to x + (- 3) = 0 \Rightarrow x = + 3$
$M n O_{2} \to x + (- 4) = 0 \Rightarrow x = + 4$
$K M n O_{4} \to + 1 + x + (- 8) = 0 \Rightarrow x = + 7$
Hence, option B is the correct answer of this question.

Suggest Corrections

Similar questions

M n

K M n O_{4}

S

N a_{2} S_{2} O_{3}

7, 4, 3, 5, 6, 3, 3, 2, 4, 3, 4, 3, 3, 4, 4, 3, 2, 2, 4, 3, 5, 4, 3, 4, 3, 4, 3, 1, 2, 3

-1/2+ [(-4/3)+3/7] and [(-1/2)+3/7]+(-4/3)

are there same

P O_{4}^{3 -}

S O_{4}^{2 -}

C r_{2} O_{7}^{2 -}

Join BYJU'S Learning Program