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The oxidation number of Mn inMn_{2}O_{7} is :

Option: 1

+5


Option: 2

+6


Option: 3

+7


Option: 4

+3


Answers (1)

best_answer

 Let x be the charge on Mn.

So, 2x + 7 X (-2) = 0

2x -14 = 0

X= +7

 

Posted by

Divya Prakash Singh

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