A) 6
B) 7
C) 14
D) 5
Correct Answer: B
Solution :
The sum of the oxidation numbers of all the atoms in a molecule of a neutral compound is zero. Let the oxidation number of\[Mn\]is\['x'\]in\[KMn{{O}_{4}}\] \[(+1)+x+4(-2)=0\] \[x-7=0\] \[x=7\]You need to login to perform this action.
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