1.

Sulphide ions react with Na_(2)[Fe(NO)(CN)_(5)] from a purple coloured compound Na_(4)[Fe(CN)_(5)(NOS)]. In the reaction, the oxidation state of iron

Answer»

changes from +2 to +3
changes from +3 to +2
changes from +2 to +4
does not change

Solution :No change in OXIDATION STATE
`Na_(2)[Fe^(2+)(NO)(CN)_(5)]+Na_(2)S to Na_(4)[Fe^(+2)(NOS)(CN)_(5)]`


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