Which of the following statements is correct

1.	Which of the following statements is correct
Answer» oxidation number of Fe in `[Fe(H_(2)O)_(5)NO]SO_(4)` is +1 oxidation number of SODIUM in sodium amalgam is -1 oxidation state of carbon in HCN is + 4 All STATEMENT are correct Solution :Since the charge on `SO_(4^(2-)` is -2 therefore the TOTAL charge ONTHE complex ION `[Fe(H_(2)O)_(5)NO]` is +2 since NO is a paramagnetic molecule its unpaired electron is transferred to iron As a resultNO carries +1 charge further since `H_(2)O` is a neutral molecule sum of its O.N is zero putting the values of all the oxidation number the O.N of Fe in the complex ion `=x+0xx5+1=+2` `therefore =+1` Thus the O.N of Fe is +1 and the correct structure of `[Fe(H_(2)O)_(5)overset(+)NO]SO_(4)^(2-)`

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