D-And F-Block Elements Ques 76

Question: What is the oxidation number of iron in the compound $

[Fe{{(H_2O)}_5}(NO)]SO_4 $ [Pb. CET 2001]

Options:

A) +2

B) +3

C) ±1

D) ±4

Show Answer

Answer:

Correct Answer: A

Solution:

Applying the oxidation number rule in [Fe(H2O)5(NO)]SO4 ( ∵ H2O and NO are neutral)

[x+(0)×5+0]+(−2)=0 x+0+0−2=0

Þ x=+2 Hence, oxidation number of Fe is +2.

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