calculate oxidation number of Mn
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oxidation state of each oxygen molecule is 2(four).The number of oxygen atoms in kMnO4 are 4 so (4*-2=-8). Since the sum of oxidation states should be neutral. So the equation should be as follows. So the oxidatiom state of Mn in kMnO4 is 7.
srinivas342:
not in Mno4. ....
in ion
is it correct. ..??
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