Redox Reactions And Electrochemistry Ques 427

Question: The oxidation number of iron in the compound $ K_4[Fe{{(CN)}_6}] $ is [NCERT 1976; MNR 1986; AIIMS 2000]

Options:

A) + 6

B) + 4

C) + 3

D) + 2

Show Answer

Answer:

Correct Answer: D

Solution:

$ \overset{,*}{\mathop{K_4[Fe{{(CN)}_6}]}}, $ $ 1\times 4+x+(-1\times 6)=0, $ $ 4+x-6=0 $ $ x=+,2 $ . In this complex compound Iron show + 2 oxidation state.



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