In ferrous ammonium sulphate,the oxidation number of $Fe$ is:
- A$+3$
- B$+2$
- C$+1$
- D$-2$
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View SolutionWhat are the oxidation numbers of the underlined elements in each of the following and how do you rationalise your results?
$(a)$ $K\underline {I_3}$
$(b)$ $H_2\underline {S_4}O_6$
$(c)$ $\underline {Fe_3}O_4$
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