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2015-03-01T13:08:25+05:30

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oxidation no of CN
C=+2
N= -3
CN = +2-3 = -1

Total oxidation = 0

4(K) + Fe + 6 (CN) = 0
4(+1) + Fe + 6(-1) = 0
4 + Fe - 6 = 0
Fe - 2 = 0
Fe = +2
2 3 2
???? how can u prove it is +2 here
the position of hydrogen determines the o.no of carbon in cn'
ok
very nice
thnkx